"Tim" wrote in message
...
On Nov 25, 8:42 am, Tim wrote:
On Nov 25, 6:59 am, Tom Francis - SWSports





wrote:
I've been trying to get some specs on this unit - seems like a really
good way to charge trolling motor batteries on long runs spot-to-spot
on a large lake or on runs from spot-to-spot inshore.

http://tinyurl.com/564jl4

I can't seem to find anything that gives the specifics on how this
works. I'm speculating here, but I would assume that it works to
charge the trolling motor batteries once the main battery system is
charged. I'm guessing that is must work on an interrupted basis -
meaning that once the starter battery is charged, it switches to
charging the 24 volt system.

Here's the thing - how?

If I were designing this, I would make it so the engine would have to
be running above idle and the charger producing more than the nominal
13.6 volts needed to run the engine. That would mean that each battery
in the 24 volt system would need to be charged a little at a time -
like say a minute for one, a minute for two - back and forth until the
batteries were charged.

That's the way I would do it, but there are other ways. I just can't
find out how it works.

Anybody have experience with these things?

Tom, I'm not really sure without seeing one, but I believe this is a
small transformer and rectifier pack, that allows you to charge 24v
and run 12v accessories. Delco and Leece-neville have been doing this
for years on heavy equipment.

One set of black/red wires ould go to 12v and the other black and red
would go to a 24v bank. one red would probably go to key switch, and
other red go to alternator charge wire.

Not sure, but thats how I see it.- Hide quoted text -

- Show quoted text -

Correction. Black/red 24, blk/red 12, blk/red keyswitch and engine
ground.

or something like that.


I re-read the specs on the Guest unit Tom is referring to. It specifically
says, 2 outputs of 12volts DC, 10 amps each. But then it says for "24"
volt systems. That is confusing.

Eisboch