I have abandoned our non air conditioned Portland house on occasion and used our RV. Plug into outlet that doesn't have any major draws .. monitor voltage from inside the RV and if it drops to less than 109 turn off the air conditioner .. make sure your batteries are already charged or turn of the converter (combo of converter and air conditioner may overload system) and put your refrigerator on gas vs electricity. If you have to add an extension cord the shorter and thicker the better. I have been told that having clean condenser and evaporator coil is suppose to reduce amp draw - if true that would help.