From my trip I realized I'd done a dumb thing by wiring up the RV distribution panel's battery charger. So when the breaker was on, it would add a 500 watt draw whenever I turned the Victron inverter on. Easy to fix by turning the breaker off, but in retrospect, it was dumb to wire it up.
the Shore power plug has 10gauge wire going to the Victron inverter, and then the Victron inverter has 6 gauge wire running back to the RV distribution panel to supply AC power. You'd think having the shore power go to the Victron inverter first would have clued me in that I didn't need the RV panel's battery charging board. I think my familiarity with the Micro Camper threw me off.
Anyway, I'm hoping I might be able to re-use the RV panel's battery charger in the micro camper. it has a similar rv panel there, but no Victron inverter. In fact in my Micro Camper, the shore power plug goes directly to the 30 amp breaker in the Micro camper's RV panel. Anyway the GFC's RV panel is newer and its battery charger panel circuit board has a lithium battery charging profile, so it's worth seeing if I can swap it out. Lithium likes to charge at 14.4volts and in two phases, so when it gets near full, the charger should taper off what it sends.
While I was in there, I added another AC outlet above the RV panel, I'll probably use it for my corded chainsaw. I also moved the SAE connector higher up on the side of the electric box, so it'll e easier to plug in my diesel heater or portable solar panel