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main batt to second batt and thrid batt
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<blockquote data-quote="funkyab" data-source="post: 5496291" data-attributes="member: 556232"><p>why do you want to isolate? I do this on my boat for security. No reason to do it in a car unless you plan on running system only on batt power for long periods of time. If not,, run all three in parallel. +to+to+ and -to-to-.</p><p></p><p>For extra safety you can fuse between all three to the rating of the wire. This is what I do but others do not.</p><p></p><p>Problem solved!</p></blockquote><p></p>
[QUOTE="funkyab, post: 5496291, member: 556232"] why do you want to isolate? I do this on my boat for security. No reason to do it in a car unless you plan on running system only on batt power for long periods of time. If not,, run all three in parallel. +to+to+ and -to-to-. For extra safety you can fuse between all three to the rating of the wire. This is what I do but others do not. Problem solved! [/QUOTE]
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main batt to second batt and thrid batt
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