Is that what's called a UPS? I often wondered if that would be sufficient to run my filter. The problem is it won't run for days.
People don't realize how cheap a small generator is these days. When I was back in Miami, I had a small one from Home Depot that I bought for a couple hundred dollars. When you compare the amount of money I have in the tank, it's a no-brainer.
My problem was the evil eye looks from my wife when she was sweating without AC but my tank was running just fine!