You've Pull-Started a Gas Mower for the Last Time. The Greenworks 40V Starts With a Button.
3,847 buyers at 4.2 stars. The Greenworks 40V 20-inch is the most-reviewed cordless mower in this category — and the dominant theme across those reviews is the same: it starts every time, in every season, without a pull cord, without gas, without prayer. For yards under 1/4 acre on standard turf, it handles the job at a price well below the EGO 56V.
Greenworks 40V 20-Inch Cordless Electric Lawn Mower
Is This Page For You?
- ✓Starts with one button — no pull cord, no choke, no gas
- ✓20-inch deck covers yards up to 1/4 acre on a single charge
- ✓3,847 verified buyers at 4.2 stars confirm clean cuts on standard lawns
- ✗Not for very thick or overgrown grass — the EGO 56V handles that better
- ✗Not for yards over 1/3 acre without a second battery
Specs at a Glance
| Voltage | 40V G-MAX Lithium Ion |
| Deck Width | 20-inch steel |
| Cutting Heights | 7 positions (1-3/8" to 3-3/8") |
| Clipping Modes | Mulch / Bag / Side Discharge |
| Bag Capacity | 16 gallons |
| Battery Type | 40V G-MAX Lithium Ion |
| Weight | ~37 lbs |
What 3,847 Verified Buyers Report
The dominant theme in 3,847 reviews is the contrast with gas mower reliability. Buyers who got tired of pull-starting describe the button-start as life-changing. Dramatic, but that's what they say.
Multiple buyers note the Greenworks is easier to push around landscaping features, garden beds, and tight corners than a comparable-size gas mower. The weight difference (37 lbs vs ~65 lbs for a comparable Honda) is meaningful.
Consistently the main caveat: buyers who let grass go 2+ weeks between mowing or have thicker turf grass varieties report bogging down. The consistent recommendation in reviews is to mow more frequently rather than waiting for overgrowth.
Frequently Asked Questions
Greenworks rates it for up to 45 minutes in normal conditions. Buyer reports range from 25 minutes in thick/wet grass to 45+ minutes on dry, well-maintained lawns. Yards under 1/4 acre are typically covered in one charge.
Yes — Greenworks uses a G-MAX 40V battery platform shared across their cordless tools (chainsaws, string trimmers, blowers). If you already own Greenworks 40V tools, your batteries are interchangeable.
For most standard residential lawns under 1/4 acre with normal grass thickness, the Greenworks handles the job at a lower price. The EGO 56V is worth the premium for thicker turf grass, yards up to 1/3 acre, and buyers who mow less frequently and occasionally face overgrown conditions.
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