The use store switch only kills power to the DC dist. panel. Looking at the way ours is wired a battery disconnect switch between the house batteries and the 50 amp breaker does nothing to help.
Batteries naturally discharge at about 1 to 2 % per month and temperature will have some effect from slowing the chemical reaction.
Before putting in a battery cutoff switch lift and tape the positive lead going to the 50 amp breaker and see if that makes a difference.
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2016 Axis 24.1 E-450 6 spd tranny
300 watts portable solar.
200 watts solar on the roof.
Wrangler JK dinghy
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