Yeah, I have a pretty decent one...13 Amps, I think? It is not powered but I do not have hills to worry about, so it is likewise also corded (so no batteries to charge.)
It works really well and is quiet, but the 75ft extension cord you need to tug around is a pain. Plus, you look like a goon to the rest of the neighborhood.
But it was cheap and is really cheap to run. I forget the brand...one of those blue ones that Lowes carries. They do make powered electric motors. I'm not sure how quickly that one saps batteries, so if you go that route, consider a few extra batteries or just a corded mower (though if you have serious hills, that might be even more problematic)