[HWYSTR455]

Well, there's one line of thinking that you want to use a slightly smaller gauge to help control the flow direction.

Remember too that the regulator won't typically pump the entire 150a at once, unless there's a dead short, and even then, enough time shorted would cook the regulator.

Just use the same gauge wire you use from the alt to the common point as the batt to common point is. That also dictates your ground to batt gauge.


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