big +1 to flooddc -
again I got the first out of 3 (very fortunately) from the springfield costco, but they were sold out 3.5 seconds after opening today. the power inverter and an extension cord ran my return pump (mag 9), one mp40, one mp10, and my skimmer over the summer for the last storm. Heat was my problem, which hopefully you won't have to worry about.