Boiled one of two 5th-wheel batteries
Greetings all, I am a new user with a problem. I had newish batteries in my 2011 Montana (purchased batteries this year). I have the smart converter with boost mode. Anyway, the rig was plugge...
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While you are at it, at least get the TV batteries checked! The only thing that changed in your scenario was you connected the TV so you could get a early start! You would then have the two batteries in the RV, plus the one(s) in the TV connected to the charger! Was it the batteries, was it the wiring??? Your GMC has a constant HOT connection to your 5th wheel batteries when plugged in, and that may have triggered the change that "fried" your batteries!
