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
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
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,
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
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
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
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
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!
: 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
://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
[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
, 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
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
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
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
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
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
-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
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
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
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
, 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
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
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
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.
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
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
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
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
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
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
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.
: 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
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
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
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
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
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
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
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
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
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
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
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
: [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
-
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
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
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
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
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
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
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 ..
, 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
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