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· Premium Member
30,177 Posts
Hmm, not sure. Basicly, and someone can correct me if I'm wrong, but you can wire dual batteries in your vehicle several ways.

First, you can get a switch kit that will allow you to move between battery A and B with other other one shut off, or run A&B together. There are some setups that allow you to isolate some components on A and run everything else on B. Or you can just simply run them together in parallel, running positive to positive and negative to negative. Only do this if you know what you're doing though.
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