Hmmm, it's not the batteries. I replaced all 4 Coach batteries this past Thursday. Everything seemed to be fine all weekend, as we were plugged into shore power. Today, I fired up the generator to keep the RV a/c's running. When I got home, I shut everything down. Maybe 30 minutes later, I tried to let a slide out and nothing was happening...everything was dead. The generator would not start either. I fired up the coach to reposition so that I could connect the shore power...everything seems fine now and the batteries are in "float charge" after charging most of the day. Something drained them, but I am not sure what.
