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Wrenchbender Ret · 07-06-2014, 10:54 AM

You need to use a bat. isolater. It has diods in it that allow the alt' to charge both bats. but keeps them on separate circuits.

07-06-2014, 10:54 AM	#2
Wrenchbender Ret Registered User Join Date: Oct 2005 Location: Overland Park, Ks. Posts: 5,229	Re: AUX battery - how is it possible? You need to use a bat. isolater. It has diods in it that allow the alt' to charge both bats. but keeps them on separate circuits.