Kobalt 80v from Lowes. Once you go electric you won't go back to gasoline.
You don't think the battery will expire in a couple years?
Good question. This is our third year with this machine and the battery is doing fine. In fact, I set the battery on the shelf last October, fully charged. After six months of dormancy, I pulled it down last week to run the mower I figured the battery would be at half-charge at best. No, the battery was fully charged. I couldn't believe a battery could set up that long and not lose any charge.
I have zero complaints about this badass machine and it has just as much power as our old 5.5 HP Briggs and Stratton.