I just got to replace my original house batteries. Replaced group 27 with group 29 deep cell marine batteries from Samsclub. They barely fit.
Prior to our first trip this year the house batteries were completely drained, and would not initially charge, so I made a panic run to Sams and bought replacements. Sometime along the trip there and back, the batteries started charging. Since I did not have a nice block of time or location I decided to do the replacement later. Hopefully these are more robust than the originals, but we do not rely heavily on them since we are rarely in a place without electricity or the ability to run the generator. Month or two long storage has been my only issue with the original house batteries.
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