Batteries charging with motor running
We have a 2015 Thor Tuscany. While running down the road with fridge on and inverter on, batteries do not charge. They charge just fine while on shore power or generator. Am I missing something? Help!
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Have owners manual. Finally received new ISO relay. Replaced. Hear 'thunk' a few seconds after starting motor. One terminal reads 13.9 volts, other side zero volts to chassis ground. Voltage at batteries holding at 12.2 volts with inverter on and fridge on. I may be missing something here. Any help appreciated
