[Repeater-Builder] Battery Revert help for MSF 5000 Diode question
Hello Group, I need some help i am working on a MSF 5000 it has a TPN 1186b power supply i need to have a battery back up what i want to do is get a 10 amp automatic battery charger to keep the battery charged my question is what size of diode and how many? would i need to go from the battery to the repeater? to keep the power supply from charging the battery? Any idea Thanks Mike Henry
[Repeater-Builder] Battery Backup (adding and external to your Power Supply
For those of you wanting to add a Battery Back up to your repeater or base-station power supply... Samlex makes an external battery backup box with the model number of BBM-12100. The online available User Manual for the box contains a lot of good information and a circuit diagram. So if you wanted to buy or build your own there's enough information to do both. Samlex makes a fairly decent line of external DC control/supply products and their pricing seems very fair. Here's a copy of the User Manaul: http://www.dcpower-systems.com/uploads/documents/BBM-12100-UserManual.pdf Just reading through the Manual will provide a lot of information to persons not having experienced this type of device/connection in the past. enjoy, s.
RE: [Repeater-Builder] Battery system for portable repeater (non solar)
At 12:47 PM 01/30/10, you wrote: Hi Mike, We're using a Kenwood TKR-720. The price was right (we had it on hand), it's relatively compact, does what we need it to. Older technology, with the front panel controller, etc. You know of a way to reduce the current?Did remove the + from the audio amp got it down to 300ma, but also removed a voltage for the xmit control - could fix, but I think it would require the removal of the logic board to get at the traces. I'll have to dig up a manual and look at the schematics... Understand about the generator, but that's one more 'messy' thing to check on our monthly checks, bad gas, gummy gas, carb problems, fuel leaks, etc. I know they have spark arrestors, but I can see us putting this thing on the side of a hill, and having some wild hog come along knock it over, putting the exhaust right on flammable grass, etc! Understand about that... The situation where we used a small battery and a generator was for a portable repeater and the repeater was going to be manned... we packed it in, set it up, and one person camped for the duration, then we rode in, took it down and packed out. As such having that person watch the digital voltmeter and the transmit running time meter and run the generator for a half hour every couple of hours wasn't a problem. That was an interesting article on a build it yourself alternator/charging system. Yep. That's why I posted it. Might give someone an idea on how to use some leftover junque. (junk=trash junque=high grade useful trash) Just remember that the ripple reduction depends on the battery - one with a high internal ESR will not be very effective. A friend built a similar unit based on the June 1997 QST article and ended up adding alternator whine filters to the design (no, he didn't have one bad diode in the alternator). That battery tender looks like it might fill the bill.. I'll check it out. They are not cheap, but they seem to work. There is a chain of stores called Batteries Plus and there may be one in your area. They stock them. Some True Value and Ace hardware stores also stock them. Thanks again, Tim Mike WA6ILQ
RE: [Repeater-Builder] Battery system for portable repeater (non solar)
At 09:24 PM 01/29/10, you wrote: I'll look into the AGM bats - the rptr draws about 450 mA in RX, and about 4A in TX. What do you have in that portable repeater that draws almost half an amp in receive? Getting a Pelican case for the repeater cables, but not sure how to make the battery transportable.. Wheels?? I'd take a heavy duty trash cart, torch off the axle and the 4 inch wheels, move the axle up on the frame so that some 12-inch or 14-inch wheels fit, then put the battery box on that. I suppose if it's 'really' sealed, then I wouldn't have to worry about leakage of the electrolyte - could use a case for it the charger. I was involved in a similar but different situation a few years ago. I was looking at transporting eight 12v 18ah batteries, a GR300 repeater, four 10-foot sections of antenna mast, the antenna itself and some coax, about 12 miles, all by horseback. Why the 18ah batteries? They were available, and new. One of the club members needed to re-battery four UPS units where he worked. Each used two of those batteries in series. He had planned the re-batterying such that he'd buy the eight a few days previous to the race, charge them, use them over the weekend as a single parallel bank of almost 150ah, then install them in the UPSs the week after the race. Then it was pointed out that a single battery (to smooth the juice), a small Honda generator (the current model is here - see http://www.hondapowerequipment.com/products/modeldetail.aspx?page=modeldetailsection=P2GGmodelname=EU1000Imodelid=EU1000IAN and some gasoline (at 6 pounds to the gallon) weighs a lot less for the same delivered amp-hours, and has charging ability as a bonus. This one is lots cheaper, won't last as long, and is more fuel hungry (you get what you pay for): http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=66619 For a roll-your-own version, this might be interesting... http://www.thefoodguys.com/homemadepower.htm Any recommendations about appropriate 'sure-fire' chargers for one of these? Ask the guys that have been doing long-life batteries, and professional charging systems for over a century... the phone company. Unless I'm mistaken the Eagle Rock central office here in Los Angeles is still using the 1939 glass Edison cell battery plant. I could put together something for float charging, Look at the Battery Tender products (made by Deltran) for maintenance charging. A while back I installed one under the hood of a friends car that gets used maybe once every 4 to 6 months. See http://batterytender.com/automotive/waterproof-800-usa-western-hemisphere.html There is probably something better out there but that scratched the owners itch. but there will also be a need for 'real' charging as well. As I said, ask a retired telco plant engineer for some ideas. Thanks again, Tim Mike WA6ILQ
RE: [Repeater-Builder] Battery system for portable repeater (non solar)
Hi Mike, We're using a Kenwood TKR-720. The price was right (we had it on hand), it's relatively compact, does what we need it to. Older technology, with the front panel controller, etc. You know of a way to reduce the current?Did remove the + from the audio amp got it down to 300ma, but also removed a voltage for the xmit control - could fix, but I think it would require the removal of the logic board to get at the traces. Understand about the generator, but that's one more 'messy' thing to check on our monthly checks, bad gas, gummy gas, carb problems, fuel leaks, etc. I know they have spark arrestors, but I can see us putting this thing on the side of a hill, and having some wild hog come along knock it over, putting the exhaust right on flammable grass, etc! That was an interesting article on a build it yourself alternator/charging system. That battery tender looks like it might fill the bill.. I'll check it out. Thanks again, Tim
RE: [Repeater-Builder] Battery system for portable repeater (non solar)
When you have this repeater active what is it's duty cycle going to be? Also are you just going to use the truck to get it to the top of the hill and then drop off the package and retrieve it later? If this is the case have you thought about putting all of this on a trailer with a small crankup tower to extend the antenna a little higher up and then you could mount solar panels to the unit and charge/recharge the batteries all the time. Stan --- On Sat, 1/30/10, Tim Ahrens tahr...@swtexas.net wrote: From: Tim Ahrens tahr...@swtexas.net Subject: RE: [Repeater-Builder] Battery system for portable repeater (non solar) To: Repeater-Builder@yahoogroups.com Date: Saturday, January 30, 2010, 2:47 PM Hi Mike, We're using a Kenwood TKR-720. The price was right (we had it on hand), it's relatively compact, does what we need it to. Older technology, with the front panel controller, etc. You know of a way to reduce the current? Did remove the + from the audio amp got it down to 300ma, but also removed a voltage for the xmit control - could fix, but I think it would require the removal of the logic board to get at the traces. Understand about the generator, but that's one more 'messy' thing to check on our monthly checks, bad gas, gummy gas, carb problems, fuel leaks, etc. I know they have spark arrestors, but I can see us putting this thing on the side of a hill, and having some wild hog come along knock it over, putting the exhaust right on flammable grass, etc! That was an interesting article on a build it yourself alternator/charging system. That battery tender looks like it might fill the bill.. I'll check it out. Thanks again, Tim
[Repeater-Builder] Battery system for portable repeater (non solar)
Now that the actual repeater is complete, I am looking for some suggestions about how to power it. The repeater and +12v power source will be stored in our rescue truck. The idea behind this is to be able to set it up on top of a hill so that we can have communications with personnel on the other side. (although we have a pretty good 'main' repeater, there are many areas of our district where we don't have handheld coverage). There won't be any charging while at the operating site - a fresh battery will be brought in as required, or it could possibly be powered by a vehicle. Ideally, I'd like to store the power source on the truck with a trickle charger to keep it ready to go, but I'm concerned about gas. Do the AGM style batteries outgas while charging? From what I've read about backup power, the AGM is the most 'forgiving' for really deep cycling. Just not sure about leaving a trickle charger going all the time. (bad previous experiences) Thanks, Tim
RE: [Repeater-Builder] Battery system for portable repeater (non solar)
Tim, The ideal battery that will not boil off electrolyte is a VRSLA (Valve Regulated Sealed Lead Acid) unit with AGM (Absorptive Glass Mat) design. Provided that the charging voltage remains within the tolerances specified by the battery manufacturer, it will never run dry. That's because the hydrogen and oxygen generated during charging are recombined by catalysts within the battery, so that pressure cannot build up and vent. Such batteries are usually identified as non-spillable since the electrolyte is in gelled form rather than liquid form. One question: Are you using a different PL tone on the portable repeater, so that you don't key up both machines when you're in a coverage overlap area? 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of tahrens301 Sent: Friday, January 29, 2010 4:00 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Battery system for portable repeater (non solar) Now that the actual repeater is complete, I am looking for some suggestions about how to power it. The repeater and +12v power source will be stored in our rescue truck. The idea behind this is to be able to set it up on top of a hill so that we can have communications with personnel on the other side. (although we have a pretty good 'main' repeater, there are many areas of our district where we don't have handheld coverage). There won't be any charging while at the operating site - a fresh battery will be brought in as required, or it could possibly be powered by a vehicle. Ideally, I'd like to store the power source on the truck with a trickle charger to keep it ready to go, but I'm concerned about gas. Do the AGM style batteries outgas while charging? From what I've read about backup power, the AGM is the most 'forgiving' for really deep cycling. Just not sure about leaving a trickle charger going all the time. (bad previous experiences) Thanks, Tim
[Repeater-Builder] battery
I have to agree with Paul. Yellow top batteries are not all they are cracked up to be, however they should have worked, maybe not just as long. I like his choice of the AGM BA-UB-GC-2 golf cart batteries even though they are relatively expensive. I used 24 of them coupled into 6 paralleled groups of 4 (24 volt) for a solar project at a friends place in Baja. that's 1260 AHrs or 30 KWHrs. They have performed superbly and run everything from refrigerators and a microwave to a washing machine and of course all the house lights. (I sent this out earlier, but it did not make the cut or something.) Hi Guys, Why not use AGM batteries and reduce the explosion problems. They can be mounted in any position and do not have need for water filling or venting applications, however I would recommend they not be sealed in a box and have some slight venting. There is some good battery information at: http://www.impulseelectronics.com/batteries_tech.htm and http://www.impulseelectronics.com/batteries2.htm. Marvin - W6MJM
Re: [Repeater-Builder] battery
Hi Guys, Why not use AGM batteries and reduce the explosion problems. They can be mounted in any position and do not have need for water filling or venting applications, however I would recommend they not be sealed in a box and have some slight venting. There is some good battery information at: http://www.impulseelectronics.com/batteries_tech.htm and http://www.impulseelectronics.com/batteries2.htm. Marvin - W6MJM At 12:22 PM 12/2/2009, you wrote: Tom, Please be advised that boating laws do not specifically require a battery to be in a box. What they do require is a battery to be securely mounted and the non-grounded terminal covered. Most folks interpret that as a battery box or bracket to old the battery in place. Most folks usually cover both battery terminals, as interpretation of the terminal issue varies state to state and officer to officer. Battery boxes as used in boating are generally vented, by the cable entrance-ways and some even have a small open vent on the top. If a battery is placed in an enclosed compartment, it is generally vented externally or via another compartment. I do not recall the precise position of the ABYC on battery ventilation, but I know they require the battery not be mounted under any electronic or electrical equipment for the sake of corrosion. In the past, I have used marine type battery boxes for radio installations and I usually vented it outside by cutting a hole in the battery box top and affixing a flexible vent line to the outside. I have experienced no complications following this procedure, either with corrosion or explosive events. Good Luck, Rich N9EMS
RE: [Repeater-Builder] battery
Thanks Marvin for restating my point. - Mike From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Marvin Munster Sent: Wednesday, December 02, 2009 3:39 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] battery Hi Guys, Why not use AGM batteries and reduce the explosion problems. They can be mounted in any position and do not have need for water filling or venting applications, however I would recommend they not be sealed in a box and have some slight venting. There is some good battery information at: http://www.impulseelectronics.com/batteries_tech.htm and http://www.impulseelectronics.com/batteries2.htm. Marvin - W6MJM At 12:22 PM 12/2/2009, you wrote: Tom, Please be advised that boating laws do not specifically require a battery to be in a box. What they do require is a battery to be securely mounted and the non-grounded terminal covered. Most folks interpret that as a battery box or bracket to old the battery in place. Most folks usually cover both battery terminals, as interpretation of the terminal issue varies state to state and officer to officer. Battery boxes as used in boating are generally vented, by the cable entrance-ways and some even have a small open vent on the top. If a battery is placed in an enclosed compartment, it is generally vented externally or via another compartment. I do not recall the precise position of the ABYC on battery ventilation, but I know they require the battery not be mounted under any electronic or electrical equipment for the sake of corrosion. In the past, I have used marine type battery boxes for radio installations and I usually vented it outside by cutting a hole in the battery box top and affixing a flexible vent line to the outside. I have experienced no complications following this procedure, either with corrosion or explosive events. Good Luck, Rich N9EMS __ Information from ESET NOD32 Antivirus, version of virus signature database 4663 (20091205) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com
[Repeater-Builder] battery
Tom, Please be advised that boating laws do not specifically require a battery to be in a box. What they do require is a battery to be securely mounted and the non-grounded terminal covered. Most folks interpret that as a battery box or bracket to old the battery in place. Most folks usually cover both battery terminals, as interpretation of the terminal issue varies state to state and officer to officer. Battery boxes as used in boating are generally vented, by the cable entrance-ways and some even have a small open vent on the top. If a battery is placed in an enclosed compartment, it is generally vented externally or via another compartment. I do not recall the precise position of the ABYC on battery ventilation, but I know they require the battery not be mounted under any electronic or electrical equipment for the sake of corrosion. In the past, I have used marine type battery boxes for radio installations and I usually vented it outside by cutting a hole in the battery box top and affixing a flexible vent line to the outside. I have experienced no complications following this procedure, either with corrosion or explosive events. Good Luck, Rich N9EMS
Re: [Repeater-Builder] battery
In the past, I have used marine type battery boxes for radio installations and I usually vented it outside by cutting a hole in the battery box top and affixing a flexible vent line to the outside. This is what I was thinking of doing. Glad to see someone else had the same idea. Thanks! Tom
RE: [Repeater-Builder] battery
Have you looked at OPTIMA Batteries?These are AGM type ( no venting at all necessary ). They have different styles and types, deep cycle (Blue Label) or as in my case I used the RED TOP in my car for hf mobile uses. Take at a look. http://www.optimabatteries.com/ - Mike From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of TGundo 2003 Sent: Wednesday, December 02, 2009 4:00 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] battery In the past, I have used marine type battery boxes for radio installations and I usually vented it outside by cutting a hole in the battery box top and affixing a flexible vent line to the outside. This is what I was thinking of doing. Glad to see someone else had the same idea. Thanks! Tom __ Information from ESET NOD32 Antivirus, version of virus signature database 4656 (20091202) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com
Re: [Repeater-Builder] battery
I have a line on agm type batteries thru a supplier, the point of this exercise is that I don't have the money for those now but I have a conventional deep cycle battery that I can use. Yea, the Optima batteries are nice. Thanks! Tom Sent from my iPhone On Dec 2, 2009, at 3:10 PM, Michael Ryan mryan...@tampabay.rr.com wrote: Have you looked at OPTIMA Batteries?These are AGM type ( no venting at all necessary ). They have different styles and types, deep cycle (Blue Label) or as in my case I used the RED TOP in my car for hf mobile uses.Take at a look… http://www.optimabatteries.com/ - Mike From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of TGundo 2003 Sent: Wednesday, December 02, 2009 4:00 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] battery In the past, I have used marine type battery boxes for radio installations and I usually vented it outside by cutting a hole in the battery box top and affixing a flexible vent line to the outside. This is what I was thinking of doing. Glad to see someone else had the same idea. Thanks! Tom __ Information from ESET NOD32 Antivirus, version of virus signature database 4656 (20091202) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com
Re: [Repeater-Builder] battery
The red top optima's are for starting, blue top is starting and deep cycling, and the yellow top is the deep cycle version. If you use a starting battery for deep cycling, you will really shorten it's life. Pete Michael Ryan wrote: Have you looked at OPTIMA Batteries? These are AGM type ( no venting at all necessary ). They have different styles and types, deep cycle (Blue Label) or as in my case I used the RED TOP in my car for hf mobile uses. Take at a look… http://www.optimabatteries.com/ http://www.optimabatteries.com/ - Mike *From:* Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] *On Behalf Of *TGundo 2003 *Sent:* Wednesday, December 02, 2009 4:00 PM *To:* Repeater-Builder@yahoogroups.com *Subject:* Re: [Repeater-Builder] battery In the past, I have used marine type battery boxes for radio installations and I usually vented it outside by cutting a hole in the battery box top and affixing a flexible vent line to the outside. This is what I was thinking of doing. Glad to see someone else had the same idea. Thanks! Tom __ Information from ESET NOD32 Antivirus, version of virus signature database 4656 (20091202) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com http://www.eset.com Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/Repeater-Builder/join (Yahoo! ID required) * To change settings via email: repeater-builder-dig...@yahoogroups.com repeater-builder-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: repeater-builder-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] battery
When drawing on a battery for HF use, the RED top or starting battery is the way to go. A deep cycle doesn't fit the bill. For a better explanation of the point check Allan Applegate's website on mobile HF operations and installations. http://www.k0bg.com/ Check his section on BATTERIES. '73, Mike -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of rman09876 Sent: Wednesday, December 02, 2009 8:10 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] battery The red top optima's are for starting, blue top is starting and deep cycling, and the yellow top is the deep cycle version. If you use a starting battery for deep cycling, you will really shorten it's life. Pete Michael Ryan wrote: Have you looked at OPTIMA Batteries? These are AGM type ( no venting at all necessary ). They have different styles and types, deep cycle (Blue Label) or as in my case I used the RED TOP in my car for hf mobile uses. Take at a look. http://www.optimabatteries.com/ http://www.optimabatteries.com/ - Mike *From:* Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] *On Behalf Of *TGundo 2003 *Sent:* Wednesday, December 02, 2009 4:00 PM *To:* Repeater-Builder@yahoogroups.com *Subject:* Re: [Repeater-Builder] battery In the past, I have used marine type battery boxes for radio installations and I usually vented it outside by cutting a hole in the battery box top and affixing a flexible vent line to the outside. This is what I was thinking of doing. Glad to see someone else had the same idea. Thanks! Tom __ Information from ESET NOD32 Antivirus, version of virus signature database 4656 (20091202) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com http://www.eset.com Yahoo! Groups Links __ Information from ESET NOD32 Antivirus, version of virus signature database 4656 (20091202) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __ Information from ESET NOD32 Antivirus, version of virus signature database 4656 (20091202) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __ Information from ESET NOD32 Antivirus, version of virus signature database 4656 (20091202) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com
[Repeater-Builder] Battery Desulphator for deep cycle batterys
Anyone have any info on a what brand Battery Desulphator to buy? tom (\__/) ... (='.'=) ()_()
Re: [Repeater-Builder] Battery Desulphator for deep cycle batterys
Tom; I would use a dedicated charger and management device by one of the solar vendors, such as Xantrex or Morningside, as they are priced at consumer ( more or less ) pricing and competitive vendors.. and are some pretty well designed stuff... Many of them have internal de-sulphate processes that are managed along with normal charging in sometimes even automated intervals.. As there charging is well managed, they minimize the need of shake-off fix's. They are sized in many sizes based on your requirements... Doug At 11:24 AM 2/26/2009, you wrote: Anyone have any info on a what brand Battery Desulphator to buy? tom (\__/) ... (='.'=) ()_()
RE: [Repeater-Builder] Battery Desulphator for deep cycle batteries
Tom, A battery that has sulphated is damaged, and can rarely be returned to 100% capacity, regardless of advertizing hype. Unless the battery is for a low-risk application, such as a trolling motor or golf cart, turn it in to a recycler and buy a new battery that you can depend upon. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Thomas Oliver Sent: Thursday, February 26, 2009 8:25 AM To: repeater-builder@yahoogroups.com Subject: [Repeater-Builder] Battery Desulphator for deep cycle batteries Anyone have any info on a what brand Battery Desulphator to buy? tom
[Repeater-Builder] Battery back up
Well I know I will sound like an Idiot asking this 3 part Question, But I have been called worse I have a 60 amp Astron with the Battery Back option that requires a 50 amp fuse on the Battery side. I know I can get a Buss type circuit breaker type that trips , But could I find something similar that would auto reset . Most times they will trip due to a surge Etc . Can I just by a AC type Circuit Box and put in a 50 amp AC circuit Breaker and mount that box on the inside of the 4 Ft Rack , Question 3 what is the simplest way for some type of Notification When the Repeater has tripped over to Battery Power. Go easy on the answers and especially the comments And I don't want to hear any Locals in My area talking about Me on the air I will be listening Ha Ha Thanks Don KA9QJG
Re: [Repeater-Builder] Battery back up
Your auto parts store will have all kinds of self-restoring 12-volt circuit breakers. Chuck WB2EDV - Original Message - From: ka9qjg To: Repeater-Builder@yahoogroups.com Sent: Wednesday, April 02, 2008 6:28 PM Subject: [Repeater-Builder] Battery back up Well I know I will sound like an Idiot asking this 3 part Question, But I have been called worse I have a 60 amp Astron with the Battery Back option that requires a 50 amp fuse on the Battery side. I know I can get a Buss type circuit breaker type that trips , But could I find something similar that would auto reset . Most times they will trip due to a surge Etc . Can I just by a AC type Circuit Box and put in a 50 amp AC circuit Breaker and mount that box on the inside of the 4 Ft Rack , Question 3 what is the simplest way for some type of Notification When the Repeater has tripped over to Battery Power. Go easy on the answers and especially the comments And I don't want to hear any Locals in My area talking about Me on the air I will be listening Ha Ha Thanks Don KA9QJG
Re: [Repeater-Builder] Battery back up
The easiest loss-of-power alarm is a wall wart connected to an alarm input on your controller. Chuck WB2EDV - Original Message - From: ka9qjg To: Repeater-Builder@yahoogroups.com Sent: Wednesday, April 02, 2008 6:28 PM Subject: [Repeater-Builder] Battery back up Well I know I will sound like an Idiot asking this 3 part Question, But I have been called worse I have a 60 amp Astron with the Battery Back option that requires a 50 amp fuse on the Battery side. I know I can get a Buss type circuit breaker type that trips , But could I find something similar that would auto reset . Most times they will trip due to a surge Etc . Can I just by a AC type Circuit Box and put in a 50 amp AC circuit Breaker and mount that box on the inside of the 4 Ft Rack , Question 3 what is the simplest way for some type of Notification When the Repeater has tripped over to Battery Power. Go easy on the answers and especially the comments And I don't want to hear any Locals in My area talking about Me on the air I will be listening Ha Ha Thanks Don KA9QJG
RE: [Repeater-Builder] Battery back up
Try your local RV dealer. They have large size buss fuses that go between the battery and the trailer power converter box. Mike KA2NDW -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of ka9qjg Sent: Wednesday, April 02, 2008 6:28 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Battery back up Recent Activity a.. 14New Members b.. 2New Files Visit Your Group John McEnroe on Yahoo! Groups Join him for the 10 Day Challenge. Featured Y! Groups and category pages. There is something for everyone. Moderator Central Yahoo! Groups Get the latest news from the team. .
RE: [Repeater-Builder] Battery back up
As to reference to this answer nowadays the 2 systems in a R.V. are 30 and 50 amps however the 2 companies that make them (world friendship and Paralax) use 2, 40 amp fuses to protect the converter and the battery So I doubt they are going to be any help with fuses such as those. I work for a r.v company and they are the 2 we deal with and all the old big stuff has been sold out for the new stuff. Joe Landers Ke4eue -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of MikeDeWaele Sent: Wednesday, April 02, 2008 8:08 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Battery back up Try your local RV dealer. They have large size buss fuses that go between the battery and the trailer power converter box. Mike KA2NDW -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of ka9qjg Sent: Wednesday, April 02, 2008 6:28 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Battery back up . http://geo.yahoo.com/serv?s=97359714/grpId=104168/grpspId=1705063108/ms gId=80618/stime=1207176537/nc1=5202321/nc2=4763760/nc3=5028925
RE: [Repeater-Builder] Battery back up
Marine supply places. Since selling the boat, I buy stuff for my RV at West Marine. Great stuff and the price is usually right. MikeDeWaele [EMAIL PROTECTED] wrote: Try your local RV dealer. They have large size buss fuses that go between the battery and the trailer power converter box. Mike KA2NDW -Original Message- From:Repeater-Builder@yahoogroups.com[mailto:[EMAIL PROTECTED] Behalf Ofka9qjg Sent: Wednesday, April 02, 2008 6:28 PM To:Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Batteryback up . - You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost.
Re: [Repeater-Builder] Battery back up
At 03:28 PM 04/02/08, you wrote: Well I know I will sound like an Idiot asking this 3 part Question, But I have been called worse I have a 60 amp Astron with the Battery Back option that requires a 50 amp fuse on the Battery side. Watch out for those BB series Astrons. The charger is just a resistor across one of the diodes. It's not the worlds best charger... I know I can get a Buss type circuit breaker type that trips , But could I find something similar that would auto reset . Most times they will trip due to a surge Etc . Can I just by a AC type Circuit Box and put in a 50 amp AC circuit Breaker and mount that box on the inside of the 4 Ft Rack , You can't use AC breakers on DC. There's good technical reasons I won't go into, but trust me - they just don't work right. DC breakers are available from multiple sources. One source is the marine suppliers like West Marine. Another is the RV dealers. Or if you have an airplane mechanic (an AP) in your circle of friends he may have a few ideas. Most of the smaller planes (Cessna, Piper, etc) use 12v systems. Question 3 what is the simplest way for some type of Notification When the Repeater has tripped over to Battery Power. Get a 5 or 6 volt wall transformer. Cut the connector off and use a VOM to identify + and - leads. Wire the + side to an alarm input and the - side to ground. As long as AC is present the alarm input will be high. When AC goes away you will get an alarm a few seconds later (as soon as the filter caps in the wall transformer discharge). If you want put an LED and a series resistor in place (about 100-200 ohms per volt) to tell you when the AC is there. Then look in the book (or ask here) for the programming... On power fail: 1) say A C POWER FAIL AT (time) 2) change the courtesy beep to the morse letter F (or something else you like). This is designed to get the users attention. On power restoration: 1) say A C POWER ON AT (time) 2) put the courtesy beep back to normal. Go easy on the answers and especially the comments And I don't want to hear any Locals in My area talking about Me on the air I will be listening Ha Ha Thanks Don KA9QJG Let us know how it works out. Mike WA6ILQ
RE: [Repeater-Builder] Battery back up
Thanks to everyone for all the Helpful info; I have enough now to make a intelligent Decision on how to approach the project Thanks Don KA9QJG
Re: [Repeater-Builder] battery backup board for micor power supply?
got a brand new still in the box Motorola Micor power supply for repeater with battery back up hook up also 2nd one on a repeater. send me email if you need a price. - Original Message - From: Kevin Berlen, K9HX To: Repeater-Builder@yahoogroups.com Sent: Monday, February 25, 2008 9:35 PM Subject: Re: [Repeater-Builder] battery backup board for micor power supply? You are looking for a TPN-1106 power supply. There is no battery back-up option for the TPN-1110 PS. Hope this helps, and 73, Kevin, K9HX At 06:26 PM 2/24/2008, you wrote: Is there such a beast? What is the number for that? I have a TPN1110B power supply. Thanks, Robert No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.21.0/1296 - Release Date: 2/24/2008 12:19 PM -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.21.1/1297 - Release Date: 2/25/2008 9:22 AM
[Repeater-Builder] battery backup board for micor power supply?
Is there such a beast? What is the number for that? I have a TPN1110B power supply. Thanks, Robert
Re: [Repeater-Builder] battery backup board for micor power supply?
There is none that I know of. The battery backup option was usually provided in the power supply, NOT the station chassis itself. On several that I have done that need battery backup, I have attached a 7809 9V regulator with a 1N4001 diode in series with the ground terminal to boost the voltage to around 9.6V. I have often thought of building this onto a card that would plug into one of the card slots, but I never had the time. This would create a situation like the GE station's 10V regulator card. Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Road Boswell, PA 15531 - Original Message - From: georgiaskywarn [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Sunday, February 24, 2008 6:26 PM Subject: [Repeater-Builder] battery backup board for micor power supply? Is there such a beast? What is the number for that? I have a TPN1110B power supply. Thanks, Robert Yahoo! Groups Links -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.21.0/1296 - Release Date: 2/24/2008 12:19 PM
RE: [Repeater-Builder] Battery backup
At 1/9/2007 20:52, you wrote: Danny, If your power supply has any kind of crowbar device in its output circuitry, it is a good idea to have a Schottky diode (not a regular silicon diode) between the power supply and the battery, with the radio connected directly at the battery. This will prevent the power supply from placing a dead short on the battery when a power line spike causes the crowbar to fire. Most Astron linear power supplies have such a circuit. It's also a good idea to have fuses in each power lead and in each jumper between batteries. Better yet, just put a fuse right at the battery. If the crowbar fires, the fuse blows. Required equipment on any battery I use. Bob NO6B
[Repeater-Builder] Battery backup
Hi, New member here. Thanks for allowing me to join. Our club has acquired some large lead-acid 12v batteries we would like to use to back up our repeater in emergency situations. Does anyone know of a good (but simple and inexpensive [we are a very small group in a very small town]) circuit to accomplish this? Any input would be appreciated. Danny WM5C Heart Of Texas Ham Operators Group (HOTHOG) Brady, TX www.hothog.org
Re: [Repeater-Builder] Battery backup
what equipment are you using now? astron makes a automatic switch (it automagicly switches from AC to DC with loss of AC) there are a couple other makers, I'm sure. you'll also have to consider battery charger(s) too. wm5c [EMAIL PROTECTED] wrote: Hi, New member here. Thanks for allowing me to join. Our club has acquired some large lead-acid 12v batteries we would like to use to back up our repeater in emergency situations. Does anyone know of a good (but simple and inexpensive [we are a very small group in a very small town]) circuit to accomplish this? Any input would be appreciated. Danny WM5C Heart Of Texas Ham Operators Group (HOTHOG) Brady, TX www.hothog.org __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Re: [Repeater-Builder] Battery backup
A really simple circuit that I have used in a couple of repeaters uses three power diodes and a resistor. Select diodes that will carry the repeater load at about 50% of their rating. Place one diode in series with the power supply to the repeater. This one keeps the voltage from backing up into the power supply when power is being supplied from the battery. Next, place a power diode in series from the battery to the repeater. Then place a power diode in series with a 10 ohm power resistor (50 watts or so) from the power supply to the battery. This keeps the battery charged. The resistor limits the inrush current from the power supply in case the battery gets discharged. It also limits the maximum current the power supply has to deliver when bringing up a discharged battery. Adjust the voltage from the power supply to float the battery at 13.5 VDC, or as close to that value as possible. Do this after the batteries are charged and power is being supplied to the repeater from the power supply and not the battery. This will minimize electrolyte loss while providing a reasonable capacity from the batteries. Hope this helps - 73 - Jim W5ZIT -Original Message- From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Mon, 8 Jan 2007 9:31 PM Subject: [Repeater-Builder] Battery backup Hi, New member here. Thanks for allowing me to join. Our club has acquired some large lead-acid 12v batteries we would like to use to back up our repeater in emergency situations. Does anyone know of a good (but simple and inexpensive [we are a very small group in a very small town]) circuit to accomplish this? Any input would be appreciated. Danny WM5C Heart Of Texas Ham Operators Group (HOTHOG) Brady, TX www.hothog.org Check Out the new free AIM(R) Mail -- 2 GB of storage and industry-leading spam and email virus protection.
Re: [Repeater-Builder] Battery backup
At 07:31 PM 01/08/07, you wrote: Hi, New member here. Thanks for allowing me to join. Our club has acquired some large lead-acid 12v batteries we would like to use to back up our repeater in emergency situations. Does anyone know of a good (but simple and inexpensive [we are a very small group in a very small town]) circuit to accomplish this? Any input would be appreciated. Danny WM5C Heart Of Texas Ham Operators Group (HOTHOG) Brady, TX www.hothog.org Run the system off the battery, and use a top quality automatic charger to keep the battery up, and make sure the charger is fail safe. You don't need a failed charger boiling and cooking your expensive battery bank. A good reference is Home Power Magazine at www.homepower.com HPM is the bible of the off-the-power-grid community, and the web site has a wealth of information. Plus, they walk the walk as well as talk the talk - the entire magazine is produced with home-made electrical power, and it's edited and published by a ham. They simply do all the layout on computers, then zip up the layout files and email them to the printing / mailing house. They periodically package all the back issues for several years on a CD (one PDF file per monthly magazine). The CDs make searching for a topic easy. More information is on their web site. Another source is the RV community. Many of the tour-bus sized motor homes have 12v battery banks that are charged by a dedicated alternator off the main diesel engine, and some have a small generator that provides AC power when parked. Most have an automatic charger that can keep the battery up when plugged into what they call shore power (the term comes from the marine environment). So check out the RV supplier web sites. But take anything you read at a sales site with the proverbial grain of salt - google (and google groups) the manufacturer and model and see if anybody is complaining about it. Mike WA6ILQ
RE: [Repeater-Builder] Battery backup
Danny, If your batteries are flooded wet cells, as distinct from sealed (VRSLA or AGM) types, you should take care to vent them to the outdoors. Wet cell batteries also require regular monitoring for electrolyte levels and specific gravity. If your power supply has any kind of crowbar device in its output circuitry, it is a good idea to have a Schottky diode (not a regular silicon diode) between the power supply and the battery, with the radio connected directly at the battery. This will prevent the power supply from placing a dead short on the battery when a power line spike causes the crowbar to fire. Most Astron linear power supplies have such a circuit. It's also a good idea to have fuses in each power lead and in each jumper between batteries. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of wm5c Sent: Monday, January 08, 2007 7:31 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Battery backup Hi, New member here. Thanks for allowing me to join. Our club has acquired some large lead-acid 12v batteries we would like to use to back up our repeater in emergency situations. Does anyone know of a good (but simple and inexpensive [we are a very small group in a very small town]) circuit to accomplish this? Any input would be appreciated. Danny WM5C Heart Of Texas Ham Operators Group (HOTHOG) Brady, TX
[Repeater-Builder] Battery load Bank
Some time ago, someone was looking for Battery Load Bank info for testing the capacity of batteries. I have now located the manual that I had, for a commercial unit and can copy it is required. John J. Riddell, VE3AMZ451 Cedarcliffe Dr.,Waterloo, Ontario, CanadaN2K 2J1 YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Battery load Bank
Hi John. I am very interested in building a load bank. Can your manual be scanned. Cheers from OZ. Banjupb - Original Message - From: John J. Riddell To: Repeater-Builder@yahoogroups.com Sent: Sunday, April 30, 2006 1:35 AM Subject: [Repeater-Builder] Battery load Bank Some time ago, someone was looking for Battery Load Bank info for testing the capacity of batteries. I have now located the manual that I had, for a commercial unit and can copy it is required. John J. Riddell, VE3AMZ451 Cedarcliffe Dr.,Waterloo, Ontario, CanadaN2K 2J1 YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Battery Back-up Question
What you really need to do is a load analysis to see how much average current you are using over a larger period of time. 10 amps might be the peak, but most equipment spends the majority of the time at idle current. very simplified- you could take 4.6 amps/hour for about 100 hours. real world derate that due to battery inefficiencies to about 80 hours. 73 Mike --- Kevin Natalia [EMAIL PROTECTED] wrote: G'Day All, I am about to install a set of back-up batteries for our repeater. Designed for back-up use. These are 2volt cells, 460amp/hr over 10hrs. What is written on them So we have 6 cells connected together to give 12volts. We are pulling , when everything is running, no more then 10amps. As a rough caculation, I am guessing the batteries should last for around 400+ hours. Anyone got a full caculation to find out how long they will last? Regards Kevin. Yahoo! Groups Links [EMAIL PROTECTED] __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Battery Back-up Question
Kevin, Before I take a stab at this could you give me a rough estimate of the physical size of the battery? Where I'm headed with this is I'm trying to ascertain if your cells are truly rated at 460 amperes for a 10 hour duration or whether it's actually 460 ampere-hours (amps multiplied by the number of discharge hours) which is common for industrial cells in the US. If truly *460 amperes for 10 hours* then your cells are capable of 4600 ampere-hours or 460 amps continuously for 10 hours. If *460 ampere-hours at a ten hour rate* then you're looking at 46 amps over 10 hours. Aconsiderable difference. (The physical size of the cell will hint as to which is correct.) The other caveat is that the longer the discharge time (generally) the more effective ampere-hours that a cell will deliver before it is discharged. If the cell is truly rated at *460 amperes for 10 hours* then you're looking at well over 460 hours at a ten amp continuous load. If rated as *460 ampere-hours at a ten hour rate* then 46 hours at a ten amp continuous load. As mentioned in an earlier post, the true load will play a factor. Doug - Original Message - From: Kevin Natalia To: Repeater-Builder@yahoogroups.com Sent: Monday, February 13, 2006 12:07 AM Subject: [Repeater-Builder] Battery Back-up Question G'Day All,I am about to install a set of back-up batteries for our repeater. Designed for back-up use.These are 2volt cells, 460amp/hr over 10hrs. What is written on themSo we have 6 cells connected together to give 12volts.We are pulling , when everything is running, no more then 10amps.As a rough caculation, I am guessing the batteries should last for around 400+ hours.Anyone got a full caculation to find out how long they will last?RegardsKevin.Yahoo! Groups Links* To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/* To unsubscribe from this group, send an email to: [EMAIL PROTECTED]* Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
RE: [Repeater-Builder] Battery Back-up Question
Kevin, Given a power consumption of 10A, 460Ah batteries will give you about 46 hours of stand-by use... The formula I used was: (available) 460Ah / 10A (consumption) = 46 hrs (time) Whether the over 10 hours affects the equation I'm not certain... If it does, maybe 460 hrs is more like it. Sorry. Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Kevin Natalia Sent: Monday, February 13, 2006 12:08 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Battery Back-up Question G'Day All, I am about to install a set of back-up batteries for our repeater. Designed for back-up use. These are 2volt cells, 460amp/hr over 10hrs. What is written on them So we have 6 cells connected together to give 12volts. We are pulling , when everything is running, no more then 10amps. As a rough caculation, I am guessing the batteries should last for around 400+ hours. Anyone got a full caculation to find out how long they will last? Regards Kevin. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Battery Back-up Question
Hi Doug, The battery is made up of 6x 2 volt cells. Each cell is large, can be lifted by one person, but not easy or light. (Talking from lifting them myself) Each cell is about 400mm high, 200mm wide, and 130mm deep. They have 2 positive and 2 negative terminals. The casing is heavy clear plastic, so one can see through into the cell for the level. On top are 2 venting caps. When all the cells are put together, they make a fairly large(long) battery. What I was working on, if it can run for 460amps for 10hrs, then 460a * 10hrs = 4600/10a = 460hrs. Calculation was way out. Thanks to everyone who provided help. The real test will be a real test, but if I can even get 80-100 hrs, I would be happy. Regards Kevin. - Original Message - From: Doug Zastrow To: Repeater-Builder@yahoogroups.com Sent: Tuesday, February 14, 2006 1:40 AM Subject: Re: [Repeater-Builder] Battery Back-up Question Kevin, Before I take a stab at this could you give me a rough estimate of the physical size of the battery? Where I'm headed with this is I'm trying to ascertain if your cells are truly rated at 460 amperes for a 10 hour duration or whether it's actually 460 ampere-hours (amps multiplied by the number of discharge hours) which is common for industrial cells in the US. If truly *460 amperes for 10 hours* then your cells are capable of 4600 ampere-hours or 460 amps continuously for 10 hours. If *460 ampere-hours at a ten hour rate* then you're looking at 46 amps over 10 hours. Aconsiderable difference. (The physical size of the cell will hint as to which is correct.) The other caveat is that the longer the discharge time (generally) the more effective ampere-hours that a cell will deliver before it is discharged. If the cell is truly rated at *460 amperes for 10 hours* then you're looking at well over 460 hours at a ten amp continuous load. If rated as *460 ampere-hours at a ten hour rate* then 46 hours at a ten amp continuous load. As mentioned in an earlier post, the true load will play a factor. Doug - Original Message - From: Kevin Natalia To: Repeater-Builder@yahoogroups.com Sent: Monday, February 13, 2006 12:07 AM Subject: [Repeater-Builder] Battery Back-up Question G'Day All,I am about to install a set of back-up batteries for our repeater. Designed for back-up use.These are 2volt cells, 460amp/hr over 10hrs. What is written on themSo we have 6 cells connected together to give 12volts.We are pulling , when everything is running, no more then 10amps.As a rough caculation, I am guessing the batteries should last for around 400+ hours.Anyone got a full caculation to find out how long they will last?RegardsKevin.Yahoo! Groups Links* To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/* To unsubscribe from this group, send an email to: [EMAIL PROTECTED]* Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Battery Back-up Question
Kevin, Thank you for the dimensions... That helps a lot. I took a look at several different lead-acid batteries at work today and calculated an AMPERE-HOURS per cubic inch factor. Applying that to the dimensions of your cells I am almost certain the battery specification you are seeing is 460 AMPERE-HOURS at a 10 hour discharge rate. So the manufacturer has rated them to deliver 46 amps continuously for ten hours before dropping to the rated discharge voltage. (AMPERE-HOURS= AMPS multiplied times HOURS) Based on a 10 amp *continuous* current draw you should get at *least* 46 hours of operation if the cells are in good shape. From my experience in the telecom world I wouldn't be surprised to see 60-70 hours. Again, assuming the cells are in good shape. As you've concluded, the real test will be to place the batteries into service and see what you actually get out of them. Now would be a great time to label the cells 1 through 6 and start a log book for them. Initially you'd record the voltage of each individual cell and it's specific gravity. Measure them from time-to-time and record what you find. That will give you a good history to watch for any cell degradation. Sounds like a nice battery string to have for backup. Good luck. Regards, Doug - Original Message - From: Kevin Natalia To: Repeater-Builder@yahoogroups.com Sent: Monday, February 13, 2006 3:19 PM Subject: Re: [Repeater-Builder] Battery Back-up Question Hi Doug, The battery is made up of 6x 2 volt cells. Each cell is large, can be lifted by one person, but not easy or light. (Talking from lifting them myself) Each cell is about 400mm high, 200mm wide, and 130mm deep. They have 2 positive and 2 negative terminals. The casing is heavy clear plastic, so one can see through into the cell for the level. On top are 2 venting caps. When all the cells are put together, they make a fairly large(long) battery. What I was working on, if it can run for 460amps for 10hrs, then 460a * 10hrs = 4600/10a = 460hrs. Calculation was way out. Thanks to everyone who provided help. The real test will be a real test, but if I can even get 80-100 hrs, I would be happy. Regards Kevin. - Original Message - From: Doug Zastrow To: Repeater-Builder@yahoogroups.com Sent: Tuesday, February 14, 2006 1:40 AM Subject: Re: [Repeater-Builder] Battery Back-up Question Kevin, Before I take a stab at this could you give me a rough estimate of the physical size of the battery? Where I'm headed with this is I'm trying to ascertain if your cells are truly rated at 460 amperes for a 10 hour duration or whether it's actually 460 ampere-hours (amps multiplied by the number of discharge hours) which is common for industrial cells in the US. If truly *460 amperes for 10 hours* then your cells are capable of 4600 ampere-hours or 460 amps continuously for 10 hours. If *460 ampere-hours at a ten hour rate* then you're looking at 46 amps over 10 hours. Aconsiderable difference. (The physical size of the cell will hint as to which is correct.) The other caveat is that the longer the discharge time (generally) the more effective ampere-hours that a cell will deliver before it is discharged. If the cell is truly rated at *460 amperes for 10 hours* then you're looking at well over 460 hours at a ten amp continuous load. If rated as *460 ampere-hours at a ten hour rate* then 46 hours at a ten amp continuous load. As mentioned in an earlier post, the true load will play a factor. Doug - Original Message - From: Kevin Natalia To: Repeater-Builder@yahoogroups.com Sent: Monday, February 13, 2006 12:07 AM Subject: [Repeater-Builder] Battery Back-up Question G'Day All,I am about to install a set of back-up batteries for our repeater. Designed for back-up use.These are 2volt cells, 460amp/hr over 10hrs. What is written on themSo we have 6 cells connected together to give 12volts.We are pulling , when everything is running, no more then 10amps.As a rough caculation, I am guessing the batteries should last for around 400+ hours.Anyone got a full caculation to find out how long they will last?RegardsKevin.Yahoo! Groups Links* To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/* To unsubscribe from this group, send an email to: [EMAIL PROTECTED]* Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubs
RE: [Repeater-Builder] Battery Back-up Question
Kevin, I suspect that you have lead-acid wet cells, which emit corrosive vapors and hydrogen gas when charging. Be very careful to enclose these cells in containers that are vented to the outside air. Normally, one would use sealed, nonspillable cells for such duty. Your rough calculations are correct. If the repeater were online continuously, the current draw times the hours would suggest a long backup capability. However, you must consider whether the end voltage upon which the battery capacity is based, is the same or higher than the voltage at which the repeater shuts down. Repeaters are normally not continuously on line, so the batteries will last longer than the calculations. However, during a power outage, repeaters often get more use than during normal times, so this must be considered. I prefer a belt and suspenders approach. I have a primary repeater that is far from commercial power lines, and it has been on a solar power system for more than three years. The storage system is two, 205 AH sealed lead-acid batteries in parallel. Although the system has never failed, I am adding a wind generator to ensure reliability if there are several consecutive days of very foggy weather. The bottom line here is that you should base your backup requirements on realistic current draws, but then hedge your bets with a generous excess. Remember that Mother Nature enjoys testing your system with extended periods of very unusual weather! 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Kevin Natalia Sent: Sunday, February 12, 2006 10:08 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Battery Back-up Question G'Day All, I am about to install a set of back-up batteries for our repeater. Designed for back-up use. These are 2volt cells, 460amp/hr over 10hrs. What is written on them So we have 6 cells connected together to give 12volts. We are pulling , when everything is running, no more then 10amps. As a rough caculation, I am guessing the batteries should last for around 400+ hours. Anyone got a full caculation to find out how long they will last? Regards Kevin. Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Battery Back-up Question
G'Day All, I am about to install a set of back-up batteries for our repeater. Designed for back-up use. These are 2volt cells, 460amp/hr over 10hrs. What is written on them So we have 6 cells connected together to give 12volts. We are pulling , when everything is running, no more then 10amps. As a rough caculation, I am guessing the batteries should last for around 400+ hours. Anyone got a full caculation to find out how long they will last? Regards Kevin. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Battery Back-up Question
On Mon, 13 Feb 2006, Kevin Natalia wrote: These are 2volt cells, 460amp/hr over 10hrs. What is written on them So we have 6 cells connected together to give 12volts. I came up with some contrived math and seems like it ought to work, but I have no idea if my ideas are right. If we take a battery that is putting out 7A per hour over 14 hours, that's 7A*12V = 84W, then 84W*14hr to get 1.176kW/hr. If we divide that 1.176kW/hr (basically, some idea as to the total storage capacity of the battery over time) by 24 hours, we can draw 49W per hour to totally discharge the battery in 24 hours. That's 4.08A per hour. Now, applying that math to the big battery listed above, we get... 460A * 12V = 5,520 W per hour for 10 hours 5,520W * 10h = 55.2kW/hr 55.2kW/hr divided by 24 hours = 2300W 2300W / 12V = 191A per hour for 24 hours to depletion. Ok... trying that from a different angle... 10A * 12V = 120W 55.2kW/hr divided by 120W = 460 hours. 460 h divided by 24 hours = 19.167 days 19.167 days divided by 7 days = 2.738 weeks. As a rough caculation, I am guessing the batteries should last for around 400+ hours. You really want to be more specific as to which week it will fail? ;-) -- Kris Kirby, KE4AHR [EMAIL PROTECTED] BIG BROTHER IS WATCHING YOU! This message brought to you by the US Department of Homeland Security Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] battery question part 2
I would like to take this topic one step further. now that we know what to do and use for battery backup ... what are the recommendations for a solar setup? Where you use the batteries as your power source. Deepcycle batteries? UPS batteries? Rod Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] battery question
At 10:33 AM 2006-01-14 -0600, you wrote: I have in service an Interstate brand 8D-PHD lead acid deep cycle battery that is nine years old and at nearly 80% of its brand-new capacity. How do you know it's at 80% of it's brand-new capacity? * Regular checks of electrolyte level topped off with distilled water * Regular specific gravity checks to watch for cell degradation * Rgular cleaning of the battery case and terminals How often is regular? What do you look for when deciding to clean the case and terminals? * Semi-annual discharge followed by an equalization charge and then return to float What do you mean by equalization charge? Tony YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] battery question part 2
At 06:13 PM 1/16/06, you wrote: I would like to take this topic one step further. now that we know what to do and use for battery backup ... what are the recommendations for a solar setup? Where you use the batteries as your power source. Deepcycle batteries? UPS batteries? Rod The folks that can answer that question are at www.homepower.com It's a magazine that caters to the off-the-grid folks, and is run by a ham. Mike WA6ILQ Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] battery question
You will only have the opportunity to deep discharge them maybe 4 to 5 times. Wet electroyte deep cycle batteries are an option at a reasonable price as long as you don't mind the acid. Dave WB2FTX [EMAIL PROTECTED] wrote: At 1/14/2006 01:09, you wrote: The sealed lead acid cells have a much better deep cycle capacity. Just don't overcharge them. Dave WB2FTX Given that batteries used in backup service rarely get cycled at all, wouldn't car batteries be a more cost-effective choice? (assuming the gel cels were not a gift) Bob NO6B Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] battery question
The sealed lead acid cells have a much better deep cycle capacity. Just don't overcharge them. Dave WB2FTX Loren James wrote: Got a small question, I have recently been given a pair of 12 v BAT_0103 batteries. These are sealed lead acid cell (UPS) and are 75 amp hr. I am currently using a pair of car batteries as battery back-up. Are the sealed ones better to use or does it make no difference. The GE power supply will charge them and switch to them during ac outage. Thanks Loren Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] battery question
Do a Google search and you will find an education in backup battery scienceI found the GE supply wont properly charge my sealed lead/acids,so I use an additional float charger with an equalization switch and equalize them monthly.Makes a HUGE difference in capacity and battery life.Car batteries are the worst for backup duty! 73,Lee http://xtronics.com/reference/batterap.htm http://www.batteryuniversity.com/partone-21.htm David Struebel wrote: The sealed lead acid cells have a much better deep cycle capacity. Just don't overcharge them. Dave WB2FTX Loren James wrote: Got a small question, I have recently been given a pair of 12 v BAT_0103 batteries. These are sealed lead acid cell (UPS) and are 75 amp hr. I am currently using a pair of car batteries as battery back-up. Are the sealed ones better to use or does it make no difference. The GE power supply will charge them and switch to them during ac outage. Thanks Loren Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] battery question
At 1/14/2006 01:09, you wrote: The sealed lead acid cells have a much better deep cycle capacity. Just don't overcharge them. Dave WB2FTX Given that batteries used in backup service rarely get cycled at all, wouldn't car batteries be a more cost-effective choice? (assuming the gel cels were not a gift) Bob NO6B Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] battery question
NO!Car batteries will sulphate and vent dangerously explosive hydrogen gas,are meant to be discharged quickly and recharged immediately and dont last long in backup service.Most site owners wont allow them to be used. Sealed lead/acid will last 5 to 10 times longer and are designed for the intended purpose.There is lots of good info on the web,do a search! 73,Lee [EMAIL PROTECTED] wrote: At 1/14/2006 01:09, you wrote: The sealed lead acid cells have a much better deep cycle capacity. Just don't overcharge them. Dave WB2FTX Given that batteries used in backup service rarely get cycled at all, wouldn't car batteries be a more cost-effective choice? (assuming the gel cels were not a gift) Bob NO6B Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] battery question
I have in service an Interstate brand8D-PHD lead acid deep cycle battery that is nine years old and at nearly 80% of its brand-new capacity. It is in stand-by service on a two-meter repeater. I owe its longevity to: * Constant float of 13.40 VDC * Regular checks of electrolyte level topped off with distilled water * Regular specific gravity checks to watch for cell degradation * Regular cleaning of the battery case and terminals * Semi-annual discharge followed by an equalization charge and then return to float Thesite has an excellent ventilation system so the owner is not concerned about venting. This battery has worked beautifully in my situation. YMMV. Doug - Original Message - From: Q To: Repeater-Builder@yahoogroups.com Sent: Saturday, January 14, 2006 10:10 AM Subject: Re: [Repeater-Builder] battery question NO!Car batteries will sulphate and vent dangerously explosive hydrogen gas,are meant to be discharged quickly and recharged immediately and dont last long in backup service.Most site owners wont allow them to be used. Sealed lead/acid will last 5 to 10 times longer and are designed for the intended purpose.There is lots of good info on the web,do a search! 73,Lee[EMAIL PROTECTED] wrote: At 1/14/2006 01:09, you wrote: The sealed lead acid cells have a much better deep cycle capacity. Justdon't overcharge them.Dave WB2FTX Given that batteries used in backup service rarely get cycled at all, wouldn't car batteries be a more cost-effective choice? (assuming the gel cels were not a gift) Bob NO6BYahoo! Groups Links* To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/* To unsubscribe from this group, send an email to: [EMAIL PROTECTED]* Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] battery question
Congrats! You have done your homework! And you were rewarded! This is usually the exception,lack of maintenance is the norm. I use both sealed and vented deep cycle batteries with good results,2200AH worth.Automotive batteries have thinner plates and more electrolyte to accomodate short bursts of hundreds of amps for starting,not much good for long light duty standby use. If you get friendly with your local IT pros,they change out UPS batteries every so often,lots of them! Bound to be a few good ones. 73,Lee Doug Zastrow wrote: I have in service an Interstate brand 8D-PHD lead acid deep cycle battery that is nine years old and at nearly 80% of its brand-new capacity. It is in stand-by service on a two-meter repeater. I owe its longevity to: * Constant float of 13.40 VDC * Regular checks of electrolyte level topped off with distilled water * Regular specific gravity checks to watch for cell degradation * Regular cleaning of the battery case and terminals * Semi-annual discharge followed by an equalization charge and then return to float The site has an excellent ventilation system so the owner is not concerned about venting. This battery has worked beautifully in my situation. YMMV. Doug - Original Message - *From:* Q mailto:[EMAIL PROTECTED] *To:* Repeater-Builder@yahoogroups.com mailto:Repeater-Builder@yahoogroups.com *Sent:* Saturday, January 14, 2006 10:10 AM *Subject:* Re: [Repeater-Builder] battery question NO!Car batteries will sulphate and vent dangerously explosive hydrogen gas,are meant to be discharged quickly and recharged immediately and dont last long in backup service.Most site owners wont allow them to be used. Sealed lead/acid will last 5 to 10 times longer and are designed for the intended purpose.There is lots of good info on the web,do a search! 73,Lee [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: At 1/14/2006 01:09, you wrote: The sealed lead acid cells have a much better deep cycle capacity. Just don't overcharge them. Dave WB2FTX Given that batteries used in backup service rarely get cycled at all, wouldn't car batteries be a more cost-effective choice? (assuming the gel cels were not a gift) Bob NO6B Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] battery question
Hi Guys and Girls I use Eastpen Gel Batteries here in OZ and they are the best in + 60 degrees C to - 10 degrees C. I have even used them in cars and with more than 5 years they are cool. You can buy then cheaper than I can they come from the USA. Cheers Brett - Original Message - From: Q [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Sunday, January 15, 2006 12:10 AM Subject: Re: [Repeater-Builder] battery question NO!Car batteries will sulphate and vent dangerously explosive hydrogen gas,are meant to be discharged quickly and recharged immediately and dont last long in backup service.Most site owners wont allow them to be used. Sealed lead/acid will last 5 to 10 times longer and are designed for the intended purpose.There is lots of good info on the web,do a search! 73,Lee [EMAIL PROTECTED] wrote: At 1/14/2006 01:09, you wrote: The sealed lead acid cells have a much better deep cycle capacity. Just don't overcharge them. Dave WB2FTX Given that batteries used in backup service rarely get cycled at all, wouldn't car batteries be a more cost-effective choice? (assuming the gel cels were not a gift) Bob NO6B Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] battery question
Got a small question, I have recently been given a pair of 12 v BAT_0103 batteries. These are sealed lead acid cell (UPS) and are 75 amp hr. I am currently using a pair of car batteries as battery back-up. Are the sealed ones better to use or does it make no difference. The GE power supply will charge them and switch to them during ac outage. Thanks Loren Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] battery backup
here is the problem i have a micor compustation repeater requires about 8amps at 120 volts 60 hrtzkey down i have a tpn110b and tpn 1121a the TPN1110B is a 120 volt 60 hrtz input the TPN1121Ais a 12 volt supply input choice one: build or find a ups to power the tpn1110b for 2 hours choice two: buy an astron rs50 with the batter charger and float charge enough batteries to run the repeater for 2 hours. also build a low voltage shut off switch so when the batteries reach 10.5 volts the repeater shuts off. I am thinking that option 2 would be the easiest and cheapest route but I thought I would ask the wise and infinite group here at repeater builders. Yahoo! Groups Links To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] battery backup
At 01:09 PM 3/31/2005, David wrote: here is the problem i have a micor compustation repeater requires about 8amps at 120 volts 60 hrtz key down i have a tpn110b and tpn 1121a the TPN1110B is a 120 volt 60 hrtz input the TPN1121A is a 12 volt supply input choice one: build or find a ups to power the tpn1110b for 2 hours Efficiency would be VERY bad. choice two: buy an astron rs50 with the batter charger and float charge enough batteries to run the repeater for 2 hours. also build a low voltage shut off switch so when the batteries reach 10.5 volts the repeater shuts off. Go for #3. Use an astron linear, or current limited switching supply (cooler) adjusted to the battery's float voltage, and connect a deep cycle battery in parallel. You can use a relay, with a resistor in series with the coil, to set the dropout voltage. Short the resistor to pull in the relay and bring everything back online once power is restored, or even better, use a 110V relay to keep the resistor shorted when the input power is up. When AC fails, then the resistor is back inline, and when the voltage falls enough, then the relay disconnects the load. Or #4, a smart controller like an RC-210 could detect this condition at a programmable point, and inhibit transmit, switch power levels to conserve power, or simply pull it's own plug. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Battery terminal corrosion
Tim, I would agree with this approach, however, if the corrosion is not to bad, try using emery cloth to clean up the post and wire end terminals. Spray the items with WD-40. Re-assemble them and then use an aerosol battery terminal spray or brush on a waterproof type grease being sure to get under, on top and around everything. Al N8ARO -Original Message- From: Tim Shephard [mailto:[EMAIL PROTECTED] Sent: Tuesday, January 06, 2004 12:42 AM These are not car type batteries. They have a bolt through terminal with a lug for the wire connection. Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Battery terminal corrosion
Use a solution of baking soda and water and a small brush. After all clean and hooked up coat them with a clear coat like spar varnish. Vincent N6OA/2 - Original Message - From: Tim Shephard [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, January 05, 2004 11:56 PM Subject: [Repeater-Builder] Battery terminal corrosion A 911 console that I maintain has developed some corrosion on the battery terminals. What is the best way to clean the terminals and what do I put on them to keep this from happening again? Thanks -Tim Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Battery terminal corrosion
A 911 console that I maintain has developed some corrosion on the battery terminals. What is the best way to clean the terminals and what do I put on them to keep this from happening again? Thanks -Tim Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Battery terminal corrosion
At 08:56 PM 1/5/2004 -0800, you wrote: A 911 console that I maintain has developed some corrosion on the battery terminals. What is the best way to clean the terminals and what do I put on them to keep this from happening again? Go to your local auto supply store and pick up a battery terminal brush - that's what they're made for. Most allow cleaning either top post types or side terminals. When they're clean, coat 'em with good ol' petroleum jelly. It's that simple! Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html Our new Repeater Audio Delay (RAD) board is now shipping! Compatible with many controllers! AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Battery terminal corrosion
It will be hard to do and maintain the system in battery working order while you work on it, the easiest way to clean the terminals is soak in baking soda/water solution - you may have to swirl them around in a kids bucket of the mixture to activate the soda enhancing the cleaning into the threads. Once you get things cleaned up apply vaseline, pure petroleum jelly no coagulants or colorants, wipe some on the underside of the terminals and once tightened in place wipe a little extra over the top - now the fun part. To be sure nobody has been doing off-hour experiments place a condom over each one to further slow the oxidation, I am imagining a whole new thread to this part - but the idea is keep-it-simply-simple. Forget the extra thread on color, scent and all that nonsense. Tim Shephard wrote: A 911 console that I maintain has developed some corrosion on the battery terminals. What is the best way to clean the terminals and what do I put on them to keep this from happening again? Thanks -Tim -- 73...Clark Beckman N8PZD Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Battery terminal corrosion
yes Virden is right .. KISS I was going to write the same message but it has been said .. I use this on ly alarm system batts and in my cars .. but I don't use the condom . that would look really funny under the hood and in the alarm pannels .. ummm maybe I should put it in the pannels .. umm still in there wrappers .. hehe =:) All the best Rick On 6 Jan 2004 at 0:15, Virden Clark Beckman wrote: It will be hard to do and maintain the system in battery working order while you work on it, the easiest way to clean the terminals is soak in baking soda/water solution - you may have to swirl them around in a kids bucket of the mixture to activate the soda enhancing the cleaning into the threads. Once you get things cleaned up apply vaseline, pure petroleum jelly no coagulants or colorants, wipe some on the underside of the terminals and once tightened in place wipe a little extra over the top - now the fun part. To be sure nobody has been doing off-hour experiments place a condom over each one to further slow the oxidation, I am imagining a whole new thread to this part - but the idea is keep-it-simply-simple. Forget the extra thread on color, scent and all that nonsense. Tim Shephard wrote: A 911 console that I maintain has developed some corrosion on the battery terminals. What is the best way to clean the terminals and what do I put on them to keep this from happening again? Thanks -Tim -- 73...Clark Beckman N8PZD Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ Rick Szajkowski VA3 RZS Charlotte Darby VA3 CMR Node Owners of IRLP Node 2120 Lakefield Ont Canada Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Battery terminal corrosion
These are not car type batteries. They have a bolt through terminal with a lug for the wire connection. So, am I to take the lug off and clean it with a toothbrush and baking soda/water solution, then lightly coat the entire terminal (even where it makes contact with the battery post), and the battery post with the petroleum jelly? Next after reassembled, coat the entire terminal/post with more jelly? Just making sure I got this right. Thanks -Tim - Original Message - From: Virden Clark Beckman [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, January 05, 2004 9:15 PM Subject: Re: [Repeater-Builder] Battery terminal corrosion It will be hard to do and maintain the system in battery working order while you work on it, the easiest way to clean the terminals is soak in baking soda/water solution - you may have to swirl them around in a kids bucket of the mixture to activate the soda enhancing the cleaning into the threads. Once you get things cleaned up apply vaseline, pure petroleum jelly no coagulants or colorants, wipe some on the underside of the terminals and once tightened in place wipe a little extra over the top - now the fun part. To be sure nobody has been doing off-hour experiments place a condom over each one to further slow the oxidation, I am imagining a whole new thread to this part - but the idea is keep-it-simply-simple. Forget the extra thread on color, scent and all that nonsense. Tim Shephard wrote: A 911 console that I maintain has developed some corrosion on the battery terminals. What is the best way to clean the terminals and what do I put on them to keep this from happening again? Thanks -Tim -- 73...Clark Beckman N8PZD Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
