profdant139 wrote:
Mystery solved!
And the bottom line here is that although these same types of batteries have usually lasted me five years (three sets in fifteen years), I will probably schedule replacement for every four years.
You have a rather un-orthodox procedure of swapping out a weak battery in the middle of a camping trip, something very few people would do.
I would recommend a pair of 6V golf cart batteries. 200+ Ah. If you buy them at Sam's Club or Costco, I am sure they will cost less than those NAPA Group 31 batteries.
If you camp with a generator, you should not have to carry a spare set, especially if you install a battery monitor.
