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Thread: House Batteries
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Old 04-12-2020, 11:42 AM   #4
TurnerFam
Senior Member
 
Brand: Thor Motor Coach
State: Georgia
Posts: 2,585
THOR #4735
I would leave the batteries charging ALL the time, and make sure they are actually BEING charged, fully, before unplugging, which sounds like you are 'testing' them for what happens overnight...

check the water levels
check the specific gravity of each cell(simple cheap device to do this)

and just because you put the Use/Store switch in STORE mode does not mean that there are NOT phantom draws, which still occur from C02 and Propane detectors, and even radio/video feeds, etc. Batteries aren't always going to 'last' as long as you might hope - different folks 'camp' different ways and use more/less power as they do...

if you 'do' replace the batteries, do so with 2) 6v GC2 'golf cart' DEEP DISCHARGE batteries, wired in SERIES for 12v output. These should give you a much better 'off-grid' time for 12v power usage versus 12v 'standard' batteries that your RV may have come with.
Sams, Costco, Batteries+Bulbs, and other 'battery' dealers, even GOLF CART or ATV dealers, may have GC2 batteries for $99 each, or close to it.
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the Turners...
two Campers, two Electric cars
former diesel pusher traveler
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