Used this on 14-1500 sq ft of lawn, front is one height, back another (easy change). Did also have battery power enough left to use the blower throughout property.
I'm wrapping up a 2nd summer with the 80v 21" push mower and I still can't stop singing it's praises. It rivals gas push mowers I've owned and surpasses the other battery powered mowers I've tried. Never once have I had to worry with gas, oil, a clogged carburetor, or spark plugs. The clear green cover for the battery compartment has broken off and I've replaced the blade...& that's it. I simply push the button, squeeze the handle, and I'm back at it. If anything were to happen to this mower I would purchase it again with absolutely no hesitation.
Bought my first electric mower and so far it has been great! I do need to use both batteries to complete my front and back yard but that is not an issue for me.