Don't you LOVE electrical problems...
I put a new set of Sears Platinum batteries in my 2013 Eagle Cap in July 2013. I have 280 watts of solar running through a MPPT controller. My rig was in Yakima WA for several months earlier thi...
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Divide; separate; read each circuit with a multi-meter. Separately put a low charge on each battery to bring it up to 13.2v. Use a 'shorting', load testing battery tester to see if it will stay up. If the reading drops to say 6v., it has a bad cell or is sulfated. Don't underestimate the ground wire. You need lots of ground connections. I always solder my connections when it doesn't need to ever be disconnected. It is the belt-and-suspenders of 12v wiring.
jefe
jefe
