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Old 06-20-2020, 11:45 AM   #1
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Wire size

I don't know if it is right or wrong but Coachmen used 6AWG wire for my battery connections. I am going to be changing over to 2 6volt batteries and am curious as to what size wire I should use as the jumper between the 2.

Should I stick with the 6AWG or should I go a little heavier such as 4 or 2?
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Old 06-20-2020, 05:08 PM   #2
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I use this for my DC wire sizing on my Roo and my sailboats.

http://circuitwizard.bluesea.com/
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Old 06-21-2020, 05:41 PM   #3
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Wire size

My rule of thumb is every foot of wire adds resistance. Thicker wire adds less. So I always use a bigger wire than called for especially when I am living off that battery bank.
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Old 06-21-2020, 07:09 PM   #4
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Quote:
Originally Posted by cliffy49 View Post
I don't know if it is right or wrong but Coachmen used 6AWG wire for my battery connections. I am going to be changing over to 2 6volt batteries and am curious as to what size wire I should use as the jumper between the 2.

Should I stick with the 6AWG or should I go a little heavier such as 4 or 2?
If adding wire (Like the jumper for 2 6V batteries) or replacing, go as large as is practical. If you ever add a large inverter the wire you replaced/added won't have to be replaced again.
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Old 06-21-2020, 11:48 PM   #5
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Quote:
Originally Posted by cliffy49 View Post
I don't know if it is right or wrong but Coachmen used 6AWG wire for my battery connections. I am going to be changing over to 2 6volt batteries and am curious as to what size wire I should use as the jumper between the 2.

Should I stick with the 6AWG or should I go a little heavier such as 4 or 2?
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Originally Posted by TitanMike View Post
If adding wire (Like the jumper for 2 6V batteries) or replacing, go as large as is practical. If you ever add a large inverter the wire you replaced/added won't have to be replaced again.
I like to use this chart:
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Old 06-22-2020, 05:35 AM   #6
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2 feet of #6 is capable of handling 100amps, gonna be pulling 100amps thru your system ?
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Old 06-22-2020, 06:16 AM   #7
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for short jumpers between the batteries use the same size #6 nothing gained going bigger
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Old 06-22-2020, 12:35 PM   #8
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Thumbs up

Thanks everyone. I went with a short pc. of #4 wire.
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