Originally Posted by NEWYORKHILLBILLY
looks like you need some battery power
That's an understatement!
An air conditioner has a lot of work to do, so it takes a lot of power. In this case, it's up to 20 amps at 48 volts or 980 watts... that would be 80 amps at 12 volts, or enough to run a small microwave oven at full power. That's okay for a few minutes at a time to cook in a microwave, but hours of air conditioning per day isn't a reasonable expectation for a travel trailer with a typical solar system and battery.