Originally Posted by Mongo
soooo I installed a cut off switch today ...
if the switch is off (no connection )
and I was to plug in the shore power .....
would the power inverter / charger be damaged ??
as a side note from an old lesson years ago ... power cut off / disconnect switch installed on negative cable ... as during normal usage positive cables are more likely to corrode .. not the negative cable
The converter shouldn't be damaged while connected to shore power with the battery switch in the off position. Providing the switch is installed at the output side of the battery and not the input coming from the converter.
With the switch in the off position there won't be any 12 volt circuits active so the battery will be (should be) fully charged. The converter's charging circuit will sense this and basically go into idle mode.
With that being said you won't have 12 volts available to the circuits boards that control the refrigerator, furnace, water pump or TV antenna booster or the lighting system in the RV.