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
