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Old 12-01-2015, 21:29   #16
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Re: Quick fix? Expanding DC electrical capacity

You have to use the same gage wire for both positive and negative. A circuit is only as good as its weakest link. I use #4 from the house batteries to the battery switch then to the DC distribution panel and #2 for the starter circuit and engine block ground. This is for a 460AH house bank and 115AH starting.
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Old 12-01-2015, 21:37   #17
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Re: Quick fix? Expanding DC electrical capacity

Quote:
Originally Posted by rwidman View Post
That's not a practical wiring plan.
Its actualy called a CAN bus ! They use it all over the place for Trucks and automotive industry. Not relays but electronically switched.
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