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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...
profdant139's avatar
profdant139
Explorer II
Nov 26, 2020
Naturist's point about lithium is well-taken. The only problem is that we frequently camp in sub-freezing weather, and lithium batteries can't be charged below 32 degrees.

I assume that rule applies to solar charging, and not just to generator charging?

And I know that it seems a little extreme to camp in sub-freezing weather. But we really like snowshoeing in the Sierra. And it usually does not get much below 20 degrees at night. (If the forecast is for really cold weather, we try to avoid that.)

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