We will be taking a couple trips this month dry camping in a state park, and in Shenandoah National Park. So, I wanted to check out my batteries and such to make sure everything is ok. FYI..in July we did a trip out to Yellowstone / Grand Tetons / Rocky Mtn and had no troubles. But...we were plugged in most every night. Anyway, I've had the solar panels turned on for a few days now, and I'm getting 13.5 - 14 volts usually on a sunny day. When I checked the interior lights the past few evenings, they get dimmer and dimmer each day while the batteries are being charged. Today, the lights wouldn't come on at all. I took my multi-meter and checked the house batteries (with the solar panel switched off) and I get 12.95 volts. I checked the chassis battery, and zip, zilch, nada. I now have the chassis battery trickle charging and I now also have interior lights.
This makes no sense to me. How can my interior lights be dependent on my chassis battery? Referring to my earlier post about the dash buttons, I have the rocker disconnect switch, an on off switch below an icon of a battery with a circle and line drawn through it and a blade disconnect at the battery itself. Is it possible that a solenoid is keeping the house batteries disconnected? I'm pretty sure the house batteries are powering my hydraulic jacks & generator start, why wouldn't they power the interior lights?