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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...
naturist's avatar
naturist
Nomad
Nov 26, 2020
May I suggest springing for one of These instead of two of the batteries you have been buying? It will have almost the same usable capacity as the pair and not need replacing for more like ten years, making it actually cheaper than the lead acid batteries.

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