Chassis Battery not holding charge
As long as I am hooked to shore power, my engine will start and the batteries are at 13.7-14 volts. If I let it set for couple of hours unhooked from shore power, voltage drops to 12-12.7 volts and won't turn over. I am having batteries load tested in the next day or two. My question: Is there anything else I should check to make sure I am not overlooking a solenoid etc.? They are Napa Commercial grade batteries and I believe are originals but don't believe they could last that long (2002 Coach). The "02 tab" on battery showing all the years is missing so I assume it was original. If it is charging when hooked to shore power, can I assume the solenoid/transfer switch is working?
2002 Fleetwood Expedtion 36' Cummins 5.9L ISB 300 hp toad 2007 Jeep Sahara JK
Ed & Sarah