Hiya Graham, One of the reasons we binned these type of supplies was for excessive AC ripple that they produced, just be mindful of this on your adventures with sealed type batteries.
By the way, If you need solar panels try this crowd out over in Oz, http://www.rockby.com.au/searchres.cfm?select=102&offset=31&stock_no=37970 Quite often they have some unbeatable specials if you are on their mailing list. Cheers for now Gareth ----- Original Message ----- From: zl3tda To: Repeater-Builder@yahoogroups.com Sent: Wednesday, February 24, 2010 9:47 PM Subject: [Repeater-Builder] Re: Motorola Power Supply Questiona Hey Gareth, Nice to hear from you. Thanks for the info on the power supply and I will heed your warnings about battery types. I am possibly able to get a circuit diagram for this from another group member and this will be very helpful in my possible future use of this supply. My primary want for this is for its DC supply at 25 odd amps for powering 12v devices in the mobile home, so if it pans out it is not that suitable for charging my Gels ... I can live with that. Might be the push I need to get some solar panels bought and installed :-) Thanks again. Graham. --- In Repeater-Builder@yahoogroups.com, "Gareth Bennett" <gare...@...> wrote: > > Hi Graham, > > We recently threw out dozens of similar items from Transpower sites that were in service as constant voltage float chargers in substations. > > What you may have is a constant voltage charger with supervision circuitry by the looks of it, and a way to set voltage and overcurrent foldback. > > These chargers are great for conventional lead acid batteries, but generally do not have temperature compensation for sealed construction cells such as SLA / AGM etc. > > Most importantly is to go by the battery manufacturers specifications....More often than not, the charger is the cheapest item in the installation. > > Regards, > > Gareth > > > ----- Original Message ----- > From: zl3tda > To: Repeater-Builder@yahoogroups.com > Sent: Monday, February 22, 2010 11:20 PM > Subject: [Repeater-Builder] Motorola Power Supply Questiona > > > > Hello all from down under! I have a Motorola power supply that has come out of a repeater installation and I am looking for some info on it. What I am mostly wanting to know is what a small row of header type pins are for - external meters etc perhaps? The numbers on the transformer are - 25D84880N02 / TB602 / Scumacher Elect 93-013-418. I did a google and got a few hits ... all NON English :-) > > I want to use this to provide the DC power needs in my mobile home while I am connected to grid power (got a few hungry devices - Ham radios,audio and Rf amps and LCD TV's). I see there is a charging circuit as well and would hope this would be suitable to keep my deep cycle batteries topped up - no solar panels installed at this time. I am wondering if the charging circuit is able to look after my batteries and has 1-2-3 stage charging - bulk, absorption and float ... or would it just be float? Having prematurely lost a couple of very big deep cycle batteries due to perhaps over zealous charging from the built-in charger on the old Trace inverter I have been using, I am keen to look after my new set as best I can. Is the charger in this type of supply up to the task or would I be best to use a smaller "good" quality three stage charger separate. > > Oh ... and to keep it "on topic" - I have a couple of Tait T800 repeaters in a rack in the bus for events and festival comms. > > Here is a link to what it looks like http://tinyurl.com/yg9p9oy > > Any help much appreciated. > > Thanks! > > Graham Shaw > ZL3TV > Mid Canterbury > New Zealand >
