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What ga wire do I need ?

dockmasterdave
Explorer
Explorer
I currently have a WFCO 45 amp converter. I have never been happy with it.
I have a voltmeter that tells me it is almost always at 13.6 volts. It never drops below that and in 8 years I have only seen it hit 14.4 once. I e mailed Randy at best converter a while back, and he suggested replacing it with a PD 55 amp wildkat. I bought that one and it came yesterday.
The instructions say " DO NOT " replace a converter with a higher amperage one.
I was hoping that the factory might have used a heavier wire than necessary, just to simplify their stock by using the same wire they have for a larger unit.
I checked my wires and they clearly say 6 AWG.
Does anyone know if #6 AWG is sufficient to handle 55 amps to a 2 battery bank at 20' ?
Thanks for any input. If I needed to run heavier wire, I can get at everything to do that. I just figured there must be a formula for amperage at a certain distance and wire gauge, and if any would know, it would be someone on here.
2014 F 150 ecoboost
2008 Chrysler Aspen
09 Amerilite 21 (modified)
2013 Bendron 14' enclosed cargo
2011 4x8 open cargo
15 REPLIES 15

2oldman
Explorer II
Explorer II
Looked at an ampacity chart?
"If I'm wearing long pants, I'm too far north" - 2oldman