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A couple of things don't connect black to black, connect the second battery ground to the engine block or frame keeping it as short as possible.
Yes connect the accessories to the second battery and no the wiring for a isolator is not stock.
What accessories are you thinking about wiring in it will give me a better idea what to recommend.
Yes connect the accessories to the second battery and no the wiring for a isolator is not stock.
What accessories are you thinking about wiring in it will give me a better idea what to recommend.
johnd651 said:I know this may be way old... but I was looking at doing this... I was wondering if anyone has any pics of the parallel setup. I am going red to red (+) and black to black (-) from secondary battery to the primary?
if i was to use the isolated setup... would I have to have everything i wanted to run off of it hooked up to the secondary battery? I looked at the isolator part, and saw it had the two nuts, and it looked like an input for a wiring harness... is it something thats just there dangling in every truck, or is there more to it?