Greenworks 40V 21" Cordless Battery Brushless Push Lawn Mower: 5.0 Ah USB Battery and Charger, LM2104
Push / Walk-Behind mower · Model 2515502 · Residential-duty · Battery
$480 Greenworks list price
Manufacturer list price only — it excludes tax, freight, dealer setup and any local discount, and dealers set the final price.
The Greenworks 40V 21 in Cordless Battery Brushless Push Lawn Mower is a residential-grade battery walk-behind mower, a quiet, low-maintenance choice for smaller yards, with a 21-inch deck and a 40 V battery. It weighs 58 lb (26.3 kg).
Also sold as: 40V 21 in Cordless Battery Brushless Push Lawn Mower (Kit (battery & charger included))
At a glance
Compare similar mowers See how this mower compares with machines of a similar size and purpose.
Chosen by stated rules, not opinion: same class, a deck within 2 in of this one, the same kind of power and a compatible duty class, then the closest power, weight and price, with other makers preferred. Figures are the manufacturers’ published ones; nothing is estimated.
Engine
| Power Source | battery |
|---|---|
| Fuel Type | Battery / Electric |
Electrical
| Voltage | 40 V |
|---|---|
| Battery Capacity | 5 Ah |
Deck
| Cutting Width | 21 in (533 mm) |
|---|---|
| Min Cut Height | 1.4 in (36 mm) |
| Max Cut Height | 3.7 in (94 mm) |
| Cut Positions | 7 |
| Discharge | 3-in-1 |
Drive
| Drive Type | push |
|---|
Dimensions
| Weight | 58 lbs (26.3 kg) |
|---|
General
| Warranty | 3 yr |
|---|
Similar models
Other push / walk-behind mowers with comparable specs — including other brands — that buyers cross-shop with the 40V 21 in Cordless Battery Brushless Push Lawn Mower.
Specs verified against the manufacturer spec sheet on Jun 8, 2026 — greenworkstools.com.
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Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.
What the specs work out to
Figures MowerFacts computes from Greenworks’s own numbers — not published by the manufacturer.
Gate & trailer fit
- 32 in gateFits
- 36 in gateFits
- 48 in gateFits
Needs at least 27 in of clearance (estimated).
Power & run time
- Battery energy200 Wh
Fit uses the deck width plus 6 in for the discharge chute, because Greenworks doesn't publish an overall width — measure before buying if a gate is tight.
Battery energy is voltage x amp-hours; run time depends on cut height, grass load and blade speed, so it isn't estimated here.
Greenworks 40V 21 in Cordless Battery Brushless Push Lawn Mower questions
What size deck is on the Greenworks 40V 21 in Cordless Battery Brushless Push Lawn Mower?
The Greenworks 40V 21 in Cordless Battery Brushless Push Lawn Mower has a 21-inch (533 mm) cutting deck.
How much does the Greenworks 40V 21 in Cordless Battery Brushless Push Lawn Mower weigh?
The Greenworks 40V 21 in Cordless Battery Brushless Push Lawn Mower weighs 58 lb (26.3 kg) as specified by Greenworks.
How much does the Greenworks 40V 21 in Cordless Battery Brushless Push Lawn Mower cost?
Greenworks's published list price is $480, checked 23 October 2026. That excludes tax, freight, dealer setup and any local discount — dealers set the final price.
What is the Greenworks 40V 21 in Cordless Battery Brushless Push Lawn Mower built for?
Residential-duty push / walk-behind mower. Built for home-lawn use.
Source: Greenworks (manufacturer) · archived copy