thanks for the replies. The trailer is stationary parked in my own little bush lot. Currently using 5-40 watt solar panels for charging a series of 3 12 volt batteries. I have never had a 12 volt power failure using any of the 12 volt accessories. just making sure that i will purchase the right converter to power up the a/c for a few hours when needed. I am pretty sure it is running off a 15 amp breaker. I do think i will run new wiring from the batteries to the new converter, when I am spending the time for a new hook up. thanks again