what gauge wire between two batteries?
I'm adding a second AGM battery to my truck camper. It's going to be under the bench seat in the back on the other side from the 1st battery. So their distance will be about at least 10-12 feet fro...
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That's not the best situation but I would use 2/0 at a minimum. Is there no possibility of installing close to the original battery? You do know they can be used when on their side?
