Have you tried the Honda eu 1000i, 1,000 watt surge, 900 watts (7.5 amps) running? Or it's equivalent? On some 5000 BTU ACs, the spec's show amps at 4.8 ( http://www.homedepot.com/p/LG-Electronics-5-000-BTU-Window-Air-Conditioner-LW5012/203127491 ) which would be 64% of the rated running watts...