Greenworks
Greenworks 40V 20" Cordless Lawn Mower: Complete Tool Kit Analysis
The Greenworks 40V 20" Cordless Push Lawn Mower is a battery-powered workhorse that comes bundled with a leaf blower, string trimmer, and tire inflator , making it a compelling all-in-one outdoor power package. Powered by dual 40V batteries (5Ah + 2Ah) totaling 7Ah of capacity, it delivers quiet, zero-emission performance on small to medium yards.
It's best suited for flat suburban lots where its 20" steel deck, 3-in-1 discharge, and push-button start shine , though its 90 lb weight requires consideration on hilly terrain.
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Last updated: . Based on our analysis of 364 lawn mowers.
What Sets It Apart
Key specification highlights based on our analysis.
Steel Cutting Deck
Durable steel deck for long-term use
3-in-1 Discharge
Mulch, side discharge, and rear bag (59 of 364 mowers have all three)
Considerations
90.0 lbs
Heavier than average (walk-behind avg: 53.1 lbs)
Why We Recommend It
- 01.
Exceptional value bundle: includes axial leaf blower (500 CFM/120 MPH), 12" string trimmer, 160 PSI tire inflator, and two batteries , tools that would cost hundreds separately
- 02.
Durable 20" steel cutting deck with a wide 1.38-3.74" cutting height range adjusted via a single lever
- 03.
3-in-1 discharge system (mulching, side discharge, rear bag) offers flexibility for all mowing conditions , a feature only 16% of walk-behind mowers include
- 04.
Push-button start eliminates the frustration of pull-cord engines; starts every time with no priming or choke
- 05.
Zero direct emissions and significantly quieter than gas mowers, ideal for early mornings or noise-sensitive neighborhoods
Considerations
- 01.
At 90 lbs, this mower is significantly heavier than the walk-behind average of 53.1 lbs, making it tiring to push on uneven or sloped terrain
- 02.
Mixed battery life reports from customers , the 2Ah battery is best used for lighter tasks or as a backup, while the 5Ah handles primary mowing
- 03.
Push-only (no self-propelled drive) means the full 90 lb weight is felt on longer mowing sessions or larger yards
Technical Specifications
| Feature | Specification |
|---|---|
| Mower Type | Push |
| Power Source | Battery |
| Cutting Width | 20" |
| Deck Material | Steel |
| Blade Type | Rotary |
| Cutting Height | 1.38" – 3.74" |
| Battery | 40V 7Ah |
| Discharge | 3-in-1 (Mulch, Side, Bag) |
| Weight | 90 lbs |
| Start Type | Push button |
Power & Performance
The 40V platform delivers ample power for standard residential grass types including Kentucky bluegrass, fescue, and St. Augustine, with customers confirming it cuts through tall wet grass effectively.
The rotary cutting system on the 20" steel deck maintains consistent blade speed under load, giving a clean, even cut across the lawn. While it won't match the raw torque of a commercial gas mower, it's well-matched to its recommended medium-yard use case.
Cutting System
The 20" steel cutting deck strikes a balance between efficiency and maneuverability , wide enough to reduce passes on medium lawns, yet compact enough to navigate around trees and landscaping. The single-lever cutting height adjustment spans 1.38" to 3.74", covering everything from a tight 1.5" summer cut to a healthy 3.5" cool-season height.
The 3-in-1 discharge system (mulching, side discharge, rear bag) gives users full flexibility , mulch for lawn health, bag for a clean finish, or side discharge for heavy overgrowth.
Drive & Handling
This is a push mower, meaning the operator provides all forward motion , a key consideration given its 90 lb total weight, which is notably heavier than the average 53 lb walk-behind. On flat terrain, customers report it pushes easily with one hand and maneuvers well around obstacles.
However, on inclines or when fatigued, the weight becomes apparent. The handle design accommodates standard ergonomic push posture and folds for transport.
Battery / Fuel
The mower ships with two 40V batteries , a primary 5Ah pack and a secondary 2Ah pack , plus both chargers, giving a combined 7Ah of capacity without additions. The 5Ah battery handles the bulk of mowing duties on a medium yard, while the 2Ah is better suited for the bundled trimmer and blower.
Battery life is the most variable factor per customer reviews; users with smaller lawns report completing a full cut on a single charge, while larger yards may require swapping batteries. As a 40V Greenworks product, these batteries are compatible with other tools in the Greenworks 40V ecosystem.
Who Is This Mower For?
Ideal For
- ✓ Homeowners with small-to-medium flat yards (up to ~1/4-1/2 acre) who want a capable electric mower without the noise and maintenance of gas
- ✓ New homeowners or practical buyers who want to outfit their entire outdoor toolkit in one purchase , the bundled blower, trimmer, and inflator dramatically increase overall value
- ✓ Eco-conscious users wanting zero direct emissions and quieter operation without sacrificing cutting performance or discharge options
- ✓ Low-maintenance seekers who dislike gas engine upkeep , no oil changes, spark plugs, air filters, or fuel stabilizer needed
Not Ideal For
- ✕ Owners with hilly or sloped terrain , pushing 90 lbs uphill without self-propelled assist is physically demanding
- ✕ Large property owners (over 1/2 acre) who may find the 5Ah battery falls short mid-job and need to recharge or swap batteries
- ✕ Users with limited storage space , at 90 lbs, this mower is difficult to store vertically and takes up significant floor area
Assembly is required and involves attaching the handle and installing accessories, which most users complete in under 30 minutes with the included instructions. The push-button start means no complicated engine setup , once batteries are charged, the mower is ready to go.
Fully charge the 5Ah battery before first use to get maximum runtime on your initial mowing session
Set your preferred cutting height before starting , the single-lever adjustment is easiest to change with the mower stationary and on a flat surface
Greenworks typically backs its 40V tools with a 4-year tool warranty and 2-year battery warranty for consumer products, but warranty terms should be verified directly with Greenworks at purchase, as coverage can vary by retailer and registration requirements.
FAQ
How long does the battery last on a single charge?
Runtime depends heavily on grass conditions, cutting height, and yard size. The included 5Ah battery is the primary mowing battery and typically handles small-to-medium lawns (up to ~1/4 acre) on a single charge under normal conditions.
The included 2Ah battery is better suited as backup or for the bundled trimmer and blower. For larger yards or thick grass, having both batteries charged beforehand is recommended.
Is this mower self-propelled or push only?
This is a push mower , there is no self-propelled drive system. All forward motion is provided by the operator.
Given the mower's 90 lb weight, which is significantly heavier than the average walk-behind mower at 53 lbs, it is best suited for flat terrain where pushing is manageable. If you have a sloped yard, a self-propelled model would be a better fit.
Can the Greenworks 40V batteries from this kit be used in other Greenworks tools?
Yes. The 40V batteries included in this kit are part of Greenworks' 40V platform and are compatible with other Greenworks 40V tools, including chainsaws, hedge trimmers, and additional blowers or mowers.
This makes the bundled batteries a great starting point for building a full cordless outdoor tool lineup.
Does this mower mulch, bag, and side discharge?
Yes , the 20" steel cutting deck supports all three discharge options: mulching, rear bagging, and side discharge. Mulching recycles clippings back into the lawn for nutrients, rear bagging collects clippings for a clean finish, and side discharge handles heavy or overgrown grass.
The ability to switch between all three is a feature found on only about 16% of walk-behind mowers.
How loud is this mower compared to a gas mower?
Customers consistently describe the Greenworks 40V mower as significantly quieter than gas-powered alternatives. Electric motors operate at a fraction of the decibel level of combustion engines, making it suitable for early morning or late evening mowing without disturbing neighbors.
There is no exhaust noise, and the overall sound profile is a low hum rather than the loud roar of a gas engine.
What is the cutting height range, and how is it adjusted?
The mower offers a cutting height range of 1.38" to 3.74", which covers the full spectrum from a tight ornamental cut to a taller, drought-resilient height for cool-season grasses. Height is adjusted via a single lever, making it quick and easy to change settings between mowing passes without tools or multiple adjustments at each wheel.
Bottom Line
The Greenworks 40V 20" Push Mower with bundle accessories is a standout value for homeowners who want to go fully cordless across their outdoor toolkit , the included leaf blower, trimmer, and tire inflator alongside two batteries make this a rare all-in-one package. On flat small-to-medium lawns, its steel deck, 3-in-1 discharge, and push-button start deliver reliable, low-maintenance performance with zero emissions.
However, the 90 lb weight and push-only drive make it less ideal for hilly yards or users who want a lighter, more effortless mowing experience.
Best for flat suburban yards under 1/2 acre where buyers want a complete cordless outdoor power kit in a single purchase.
Consider alternatives if you have sloped terrain, a large property requiring extended runtime, or prefer a lighter self-propelled mower.
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