I have had a RR in my coach from the beginning and it takes a couple of hours of generator in the morning to get the batteries back up. I don't have solar and I like to use all my appliances (even at night) so running the generator is required in the evening to cook anyway so at bedtime the batteries are again full. Not a big deal for us. These days we actually are either plugged in or driving so it's not any kind of a deal at all. We have a 90 amp alternator and the batteries maintain 13+V the entire time we are driving (generally 8 hours/day).