[Shop-talk] charging batterys in series

[Arvid Jedlicka]

If it really is in series then I think you essentially have a 24v battery 
with the advantage of the 12v tap center tap being exposed.

I would either get a 24v battery charger ... not much chance of that ... or 
I would think that you could put two 12v chargers on it. Put one on each 
battery and it just happens that the positive of one charger will be on the 
same 12v center tap that the other battery charger's negative happens to be 
on. Yes, the chargers are "in series" but I think the load of the battery

I'm can only assume that there are reasons this will not work perfectly, or 
may even at all, but that's how I would try to solve the problem. If I had 
smoke coming out of a charger after this experiment I would simply install a 
massive disconnect switch where the two batteries are connected to each 
other, turn off the switch to isolate the batteries, then hook the any 
chargers that I had left that were not smoking to each of the batteries like 
normal.

Obviously you could simply disconnect the batteries instead of the massive 
switch, but I think that would get old after the second time and then I'd 
install the switch because I am lazy.

Arvid


----- Original Message ----- 
From: "Dan and Jenny Fest (Coles Nurseries Inc)" <coles at colesnurseries.com>
To: <shop-talk at autox.team.net>
Sent: Friday, July 30, 2010 8:04 PM
Subject: [Shop-talk] charging batterys in series


>I have a bulldozer that has two batterys wired in series i.e. neg, pos to 
>neg,
> pos.  Can someone refresh my memory how to charge the two.  I know I can
> charge them separately but is it possible to charge them together leaving 
> the
> cables in place.
> Thanks,
> Dan
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