I bought the BatteryMinder years ago when we lived in Alaska. I would pull the batteries from my class C for winter storage and hook them all up to the BatteryMinder. My deep cycle batteries went from lasting 2-3 years to about 6 (I never had to replace them again before I got rid of the class C). Now I carry it in the diesel pusher just in case my toad battery needs a little help.
Steve
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