battery isolator wire gauge size.

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URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=126081
Printed Date: May 14, 2025 at 1:50 PM

Topic: battery isolator wire gauge size.

Posted By: breaker1369
Subject: battery isolator wire gauge size.
Date Posted: February 09, 2011 at 12:11 AM

Got a question about wat gauge size is appropiate ok would it be ok if wire from alternator to isolator is 0 gauge and from isolator to main(starting) battery 4 gauge and isolator to aux battery (prob mounted in the bed) be 2 gauge?

Replies:

Posted By: breaker1369
Date Posted: February 09, 2011 at 12:12 AM

oh and whats the limit on the distance between the isolator and alternator

Posted By: oldspark
Date Posted: February 11, 2011 at 12:42 AM

Depends on the current.
& Depends on the allowable voltage drop.

Why change gauges?

Why not have the isolator between the 2 batteries (instead of alt & battery #2)?

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