Before we went full time we left the rig plugged in and the batteries still in place when wind chills would be well below zero from time to time. Never had an issue. A full charged battery won't freeze.
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Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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