You did not mention model, I have a Granite Ridge so I will speak to it. When I leave it plugged in to 110 it over charges and boils the battery. I purchased the IQ 4 add on module that supposedly turns the Iota converter/charger into a 3 stage smart charger. It still boiled the battery. I have since purchased a separate smart charge battery charger and things work like a charm. Not sure what I will do in freezing weather when I will run a 110 splace heater, probably disconnect the battery. Not sure I helped much. Jerry
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