We have a residential refrigerator for more than a year, now. We would not want to go back to the absorption type.
We dry camp frequently, usually weekends (3 days) for dog agility trials. Twice this past July, we were off grid for 5 days, in the Rockies. We had no problem with the refrigerator.
We have 6 agm 12-volt house batteries and a 2800-watt inverter.
We do use our generator, usually a couple hours in the morning and a couple of hours in the evening. One time in each of the 5-day periods mentioned above we did not run the generator in the morning because we were in a hurry to leave for a day trip.
Tom
2015 Meridian 36M
2006 CR-V toad
3 golden retrievers (Breeze, Jinks, Razz)
1 border collie (Boogie)