Forum Discussion

joebedford's avatar
joebedford
Nomad II
Apr 07, 2018

Do battery cutoffs and auto-reset breakers ...

...fail in such a way that they reduce battery capacity? I put a brand new battery in my rig but this morning 20 minutes of furnace dropped the voltage enough that the main circuit breaker tripped ...
wa8yxm's avatar
wa8yxm
Explorer III
Apr 07, 2018
A single Group 27 From Autozone assuming a MARINE/deep cycle you have less than 20 Amp Hours of usable power.. Your furnace likely draws about 10 amps all by itself. Add other stuff Lights and such) and you run out of power fast

Upgrade to a pair of GC-2, that's 220 amp hours give or take a bit, over 100 usable amp hours. over FIVE TIMES teh usable power. That's your problem.

And if that Autozone battery is not a MARINE/deep cycle.. the numbers are even worse for it.

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