About 18 years ago, I switched to AGM batteries in all my vehicles including my RV. They do self-discharge but at a rate 10 times less than any flooded battery. I have stored my Corvairs for up to 6 months with the batteries disconnected and found them fully charged in the spring. I found two size 31 AGMs would power our 4 cuft electric frig for 36 hours through the sine wave inverter in our previous class A coach. Again disconnecting the batteries in the RV for storage in October and reconnecting the for the spring trip to Florida, I found I did not need to keep them on a battery charger.
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Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
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