Jfet,
We have a pretty low tech pop-up TC so anyone can duplicate in their own way what we have.Out of the 260 days camping, 3 were with electricity, and the gennie time was close to 2 or 3 hours. Fridge ran 24/7.
Keeping our batteries up has not been a problem.
Have had 3 absorbtion fridges in the past and can,t recall ever having a problem . The electric fridge system is what I planned for and so far has been a breeze.
If you run out of propane, you are dead on the water but I still have an alternator, Honda, and hopefully sun.
Dave