I was trying to figure out how to prevent my batteries from over charging or loosing water when we are long term living in our AS in Florida for the winter. I read that the inverter does nor have to have batteries connected for it to supply 12V
to the camper. So I thought I would see what happens when I put the storage switch in the storage mode as it disconnects the batteries using a solenoid. I unplugged the camper from shore power and placed the store switch in the store mode the red light went out signaling no 12V
. I then plugged in the shore power and checked that the red 12V
light came back on. I checked the battery voltage and they were at 12.75 volts. I then put the switch in the non storage mode and checked the batteries they were at 13.75V.
So if you want to disconnect your batteries so they don't overcharge just put the storage switch in the store mode. Remember your red light will always be lit while you are plugged in as the inverter is supplying 12V. To verify the batteries are in fact disconnected I turned on the 12V lights and then unplugged the shore power and the lights went out the red 12v light was out also. You do need to return the storage switch to the non storage position when you are traveling so you have 12V from the batteries for the fridge to work on propane provided you have one with auto ignition.
We have a 2006 23' 75th anniversary AS.