I do not leave batteries in these devices over the winter in storage. They are replaced every year with new fresh batteries. The only portable electrical items left in the camper during winter storage are the two TV's and the stereo but these are allowed to acclimatize to the weather as spring approaches. The TV's would be removed if I had a safe place to store them in my house, but I do not.
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Jim W.
2016 34RL CC; 2008 Ram Mega Cab 2500HD, 6.7L, 68RFE 6 speed, 4X4, Smarty S67, TDR 145K+miles
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