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Gonna upgrade underhood wiring. My question is can I eliminate the crossover wire from one battery to the other by tapping both battery positives to the alternator output lug? It would eliminate a large length of wire for sure, what would be, if any, the adverse effects of wiring that way?
What do you think the gain of having the crossover wire with the taps off the alt? I have also heard of running wire from the back case of the alt to the neg of the batteries. What is the consensus on that? Its on youtube in a vid from an alt builder
I have never had that experience, actually the opposite. There was a time years ago that I did not use enough/proper grounds and would experience loop issues. Good grounding eliminated ground loop issue for me. I have not grounded my alt case to my battery ground before, a video on youtube gives a good explanation of the positives of doing it so I may try. https://www.youtube.com/watch?v=K3EFGlHPFDk
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