So, I went on a 10 day trip. 1701 miles.
This was a typical river/outdoor type trip for us with the bonus of an eclipse. There was me, my wife, my 13yr old son, and 2 of his friends. We were on 3 different rivers on 4 different days, we had 3 serious hikes and one nice stroll in Joyce Kilmer, we stayed in a hotel 2 nights, we stayed in our friends' driveway 2 nights, 3 nights in campgrounds (one with power), and three nights in the boonies without any amenities.
The boys (and I) were tough on the electrical system. (the solar panel got it's first walk on -- no damage). The boys had lots of "electronics" that need charging and they got 3 hours a day of game time on the game console. At the eclipse site, we had a bunch (maybe 10) of people using the various charging stations. And the dimmable rack lights were a big hit. Everyday, excepting one day at our friend's, the van moved. The battery bank stayed above 70% most all the time, though the Sunday night before the Eclipse, after only a little driving on Saturday and no charge excepting some sun, the batteries dropped to 48%. I started with 400ah of battery bank, but in loading for the trip, I just didn't like how the new batteries got in the way and didn't have time to remount them, so we only took 200ah. The 400 would have given us plenty of reserve so as to make charging a non-issue.
I'm guessing that we used about 60ah a day. The one day we had the battery bank run down some and parked it in bright sun, the solar panel contributed 22ah! That's an installation record. I'd say the solar panel averaged a bit over 10ah of daily contribution. I saw several at 6 or 7 and several at 12 to 14. (I note that the Ctek blends the solar panel charge with either shore power or alternator power. The day we got 22ah from the solar panel was a day we drove over 300 miles.) I have a 100 ah battery in our adventure trailer. I use it to run blowers for the rafts and a fairly elaborate indoor and outdoor lighting system in the trailer. The trailer battery has a Ctek 7amp ac charger. One day, we charged it from the van inverter.
All in all we're happy. I see a need to do some work on changing and incorporating the OEM dome lights into our switch panels. It will be a good lesson in switch logic.