Quote:
Originally Posted by wsthomas1
I have a 2020 Chateau 27R and i want to upgrade to two batteries. The batteries I intend to use are the Duracell 27DCX, since 6 VDC golf cart batteries won't fit. I'm going to use two 24" cables to wire the batteries in parallel. My question is, what should the AWG of the cable be? Thanks
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It all depends on the maximum current (amperage) you expect to draw from the battery. In other words, 1/2 of the total expected draw. Typically there is a 50 amp circuit breaker in the converter and the battery bank cable and a 100 amp circuit breaker on the cable to the generator starter motor and the jack motor. So, 4 ga will carry 100 amps (with a 3% loss), but to connect the batteries together, you would only flow 50 amps from each battery; thus the answer would be 6 ga. If you have an 1000 watt inverter, it should have a 100 amp circuit breaker, also; so the answer remains 6 ga is sufficient.