what would br the smallest size portable genny would i need to run 1 A/C and a TV and some lights when stopped for the night when traveling? and any brands that are better tan others? thanks
Class A with no on board generator? How did that happen...
Anyway you are looking at 3000 to 4000 watts to operate in most conditions.
I recommend two Honda 2000, parallel kit and extended run fuel tank if you need air all night. Not sure how to keep $2300 from walking away at a truck stop.
If you want to go high tech you could mate a Victron inverter to combine power with a single Honda 2000.