The most important issue would be the voltage at the air conditioner. Measure the voltage in the camper with your arrangement with the air conditioner running. If the voltage is below 110V do not operate that way.
Chuck - Sparta, TN
2012 Jay Flight 22FB, 2 x Honda EU2000i
2013 GMC Yukon XL Denali AWD
EDUCATION is what you get when you read the fine print.....
EXPERIENCE is what you get when you don't.