The Ego Power+ 21-Inch Lawn Mower with two batteries, our pick for the best overall electric lawn mower, is currently 43% off, and the only deal online to offer two batteries. Keeping your lawn healthy and well-maintained starts with a good lawn mower. Choosing the right lawn mower depends on the size of your property and your budget. What to Expect for Prime DayThe best deals will be on electric lawn mowers. Prime Day Push Lawn Mower DealsIf your property isn't that large or you don't have a lot of hills, you can save a lot of money buying a push mower.