Posted by David Sherman on Sunday, March 05, 2006 at 0:57AM :
In Reply to: Re: how to hook up 2 batteries in series? posted by Rick in SC on Saturday, March 04, 2006 at 8:03PM :
Isolators are normally used for RV setups where you want one battery to run the RV lights, fridge, TV, etc and you want to be sure that if it gets run down, you can still start the truck. I agree there's no need for an isolator when all you're trying to do is provide extra starting current.