Posted January 24, 201015 yr I saw a discussion about this a long while ago on some audio site and can't find it again.I just wanted to know if there are any substancial advantages to running power wire directly from the alt to the back battery bank.For example: I have 4 runs of 1/0 running from front to back, 2+ and 2-. Right now, both + are running back from the + on my front battery. Would it be advantagous to run one run back from the + on the front battery, and the other from the + on the alt to the back battery bank? Advantages, disadvantages, not matter?My electrical will consist of 2+ and 2- runs of 1/0 from front to back, big 3 in 1/0, one 290 amd DC alt (2 in the future), g34 YellowTop up front (soon to be a Deka 9a31), and 4 Deka 9a31's in back (soon to be 6-8). All in an 03 Expedition XLT.Will be powering either 4 SAZ-3000d's (each at 1 ohm and gained down) or one Soundigital 12kd or 16kd (at 1 ohm gained down quite a bit).
January 24, 201015 yr The first advantage I can see is you are making two 1/0 ga runs to the alternator. I don't think it would matter if you run the second 1/0 from the alt to the front or back battery. Other than that you should look at a wire ga rating chart, could depend o how much power your trying to move. maybe someone smarter than me can chime in.
January 24, 201015 yr Their would be NO advantage to doing this.....The ONLY thing you will gain is maybe 2-5 watts of output, by way of .03 or so ohms less resistance
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