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Old 10-29-2019
DW SD DW SD is online now
Senior Member
Join Date: Jul 2010
Location: Encinitas
Posts: 1,581

Do you have a combiner switch for that battery?
I believe you need to have that switch on to charge. Otherwise it is only charged via alternator on generator.
As for your draw, that I can’t explain. But I would get a current meter on there and see what the real draw is.
I pay special attention to topping off that battery each time I use it through the combiner switch. I energize in the morning when the solar is pumping. Then turn off when in float.

Doug W.
Encinitas CA
2004 M380
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