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GW
★ Our top pick
Greenworks 40V 21-inch Cordless Mower
8.2
This 21-inch 40V Greenworks is the archetype of the sensible battery mower: push a button, mow, fold it up, and hang it on the wall. It shines on small and medium lawns that get cut regularly, where it is quiet enough for early evenings and light enough to steer with one hand. The honest knock is that thick, tall, or wet grass exposes the runtime and power limits fast, and the plastic deck will not shrug off curb strikes the way a steel one does. Buy it if your lawn is modest and you keep up with it; skip it if you have half an acre of stubborn growth or let the grass go three weeks between cuts.
Why we rate it
- Push-button start and near-zero maintenance compared with any gas mower
- Quiet enough to mow early or late without annoying the whole street
- Light and maneuverable, with a fold-up frame for vertical wall storage
Keep in mind
- Runtime drops sharply in thick or tall grass, so big yards need a spare pack
Community discussion
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