My wife and I used to camp (100% boondocking) in a tiny 14' TT with what I think was a 100W panel that came with it and one group 27 battery. No generator and no inverter, furnace every night, fridge 24/7 on propane, all incandescent lights, water pump for dishes, a 12V fan, and stereo use. Plenty of 3 day weekend camp trips and never ran out of battery. It would be in the low 12's for voltage by the end of the trips. I think if your usage was similar, and especially if you changed to LED lights, you could go a few days before needing a strong recharge with the gen. Park the TT in the sun.
