Yep, I should have put more detail in my response. I'm using a 800 watt inverter to handle my wall chargers. A 1750 inverter is a big one, can run you power saw off that dude. My setup has dual group 30 deep cycle batteries charged by two 30 watt solar chargers mounted on the roof of the trailer. I have a thermostate controlled RV fan mounted on the roof that comes on when the temp in the trailer hits 95. Lighting is 12volt RV lighting with the 800 watt inverter powering three wall outlets. The trailer is insulated with 1" foam (walls and ceiling) and finished with 1/4" ply walls and ceiling.