Quote:
Originally Posted by CSH Kucinski
I am putting a charger in my boat for the first time, I have a house battery in the bow and a cranking battery in the back. Both are wired together so when my motors are running both are charging. The issue I have is that the two batteries are approx. 20' apart and I cannot centrally locate the charger. So do I extend the lead with 12 AWG wire to reach 20' or do I just hook the charger up to one battery and it will charge both? Not sure what to do with this set up?
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Technically yes it will charge both, you have them hooked together so it's really just one big 12v cell anyway. But , I'm with Bobby on this one, get a 30 amp, dual bank charger, extend one set of leads and charge each one independently. That way each battery is getting 15 amps and charging alot quicker than letting one bank charge both.
Also do you have a switch to isolate each battery? I ask this because if one battery starts to have problems, say a shorted cell, if they are connected it will affect the other battery. I'd have them on a switch, connect them while outboard is running to charge them both then isolate them when the big motor goes off.