12volt power fluctuating 29BHS

[ZENSTEEL]

I posted this in the wrong forum by mistake and couldn't figure out how to kill the other.

I have a 22 29BHS which is currently boondocking on my hunting property in Northern Michigan. I have 4 200 amp hour lithium batteries which I bring home and charge in the house due to the recent cold temps. This past weekend everything was running fine until day two when the lights began to flicker, the incommand showed the voltage bouncing from 13.1 to 12.4, and the furnace fan motor was also fluctuating. I turned off the furnace but the lights continued to flicker. The shunt said I had consumed about 150ah so there should have been plenty of power left. When I left I retracted the slide without issue but the lights and voltage continued to flicker. Any ideas?

[CBears]

I'm sorry I can't help you out but am replying because I'm very interested in the replies you get.

[JOglesby]

Has it been raining a lot lately? I only ask because I had similar issue with an older camper. When we were plugged into shore power all the AC circuits worked fine but the 12 volt DC circuits would flicker. To the point the lights and fans were useless. Excess moisture in the DC circuitry can cause this. As everything still flows through the DC converter (even when running on battery all stll goes through that box). May want to look into replacing you converter box. Its all built into the breaker panel.