Like said above the quick check to see if the batteries are working (Connected) is just turn on the CEILING LIGHTS when not connected to shore power. The Ceiling lights runs off your 12VDC (Your batteries in this case with shore power turned off).
If they do not work then you have either dead batteries or something failed between the batteries and the converter. Could be as simple as the Battery Disconnect switch has been engaged or a tripped circuit breaker or fuse that is installed between the battery terminals and the 12VDC Distribution panel where all the fuses are are located...
Using a multimeter to measure the battery terminals when shore power is disconnected is 12.6-7VDC for a fully charged battery. When you connect to shore power this battery level should jump up to 13.6VDC telling you the batteries are being charged by the on-board converter/charger unit.
Roy Ken
My Posts are IMHO based on my experiences - Words in CAPS does not mean I am shouting
Roy - Carolyn
RETIRED DOAF/DON/DOD/CONTR RADIO TECH (42yrs)
K9PHT (Since 1957) 146.52M
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