I have no idea whether the panels are wired in series or parallel.
So far, so good. 90% of our camping trips so far, were in 2-4 days range. I think I can survive 4-5 days easily without charging, but without home luxury (nespresso machine, etc.
For the this year I am planning only one longer camping trip, 10 days, the same shaded campground as last year. I am just considering some options - buying a generator or just renting locally once or twice. Does not make much sense to buy I think if I need the gen only once or twice a year...
Part of the failure last year what the fact that I had the inverter turned on all the time. It was stealing at least 50Ah per day I guess.