Hmmm... Sounds like the idea of using batteries to power my AC may not be feasible. I guess the next question is whether anyone has replace the Onan generator that comes standard on our US Westies with something quieter and perhaps a bit more powerful/sophisticated. Should probably look through the various threads to see if there is a discussion on this topic, but will put it out here in case one of you 'inmates' has an answer or can point me to one.