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profdant139's avatar
profdant139
Explorer II
Nov 25, 2020

Battery failure puzzle: voltage good, little power

I have (or had!) two five year old group 31 NAPA deep cycle marine batteries, rated at 110 amp/hours each. They were not hooked up in parallel or series -- I use one at a time, swapping them out as n...
RJsfishin's avatar
RJsfishin
Explorer
Nov 27, 2020
Quote:
. If the batteries are bad I would defiantly go with 2 6 v GC batteries, they will last much longer than your 12 v batteries.
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Not true !! An amp hr is an amp hr no matter if its in a 6v or 12v.
2 12v w/ a total capacity of 220 amp hrs will last just as long as 2 6v w/ the same total capacity.

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