It's the first things you think of when buying an RV. How do we run our AC or any of the outlets when we're not plugged in at an RV park. At lest for us, we found out the hard way. We were pretty green when we purchased our RV so we didn't know that nothing was going to work in our rig unless we were connected to shore power or running the generator. That is until we found some help, and now we're able to do pretty much anything we want anytime.