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jjrbus's avatar
jjrbus
Explorer
Feb 10, 2023

Battery isolator charge vehicle battery on shore power

I have a new to me 02 Roadtrek on a Chevy chassis.
There is what looks to be a newer 4 post isolator,
I see no name brand or specs on it.
I have been RV'ing long time and never had an isolator before
and assumed they charged the vehicle battery when on shore power.

I am plugged in for a couple weeks
and everything is functioning properly.
My house battery is showing 13+ volts at the isolator terminal
and the vehicle battery is reading 12.25 volts at the isolator terminal.

Should this be charging the vehicle battery on shore power??