I have a 2.5 acre yard to mow (with many big trees) so buying a battery operated lawn mower is not an option. However, I do enjoy mowing the yard with my Ferris zero-turn lawnmower. The Ferris is about the size of a small tractor and with its duel gas tanks holding 11 gallons its bound to piss off enviro Nazis better than a burning tire. :) I love it!
However, I forgot to mention that I do have two battery -operated weed eaters.