Greenworks 40V 21" Brushless Self Propelled Lawn Mower with 5.0 Ah Battery and Charger 2516402
Greenworks 40V 21" Brushless Self Propelled Lawn Mower with 5.0 Ah Battery and Charger 2516402
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Greenworks 40V 21" Brushless Self Propelled Lawn Mower with 5.0 Ah Battery and Charger 2516402

371 ratings

Key item features

  • Efficient Motor: Highly efficient brushless motor delivers increased torque, quiet operation, and extended lifespan.
  • Cutting Performance: Durable 21-inch steel cutting deck offers 3-in-1 functionality for mulching, bagging, or side discharge.
  • Maneuverability System: Self-propelled drive with variable speed rear-wheel drive enhances traction and ease of use across various terrains.
  • Adjustable Height: Single lever provides 7-position height adjustment, ranging from 1-3/8 inches to 3-3/4 inches.
  • Convenient Operation: Features a hassle-free push-button start, eliminating the need for gasoline, pull cords, or spark plugs.
  • Included Power: Comes with a 5.0 Ah battery and a quick charger for immediate use.
  • Product Weight: The assembled product weighs 83.78 pounds.
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Specs

Horsepower, 0 HPEngine make, OEM BrandedNumber of cutting positions, 7Weight, 83.78 lbBrand, GreenworksAmps, 5 A

About this item

Product details

The brushless motor provides more power, longer runtime, and a longer motor life. It starts with just a push of a button, and with the self-propelled rear wheel drive, this mower increases your traction making it easier to maneuver and almost effortless to use. This mower is ideal for yards up to 1/3 acre, featuring dual active battery ports and two 40V 6Ah batteries that provide up to 70-minutes of runtime. The 21 in. steel deck is lightweight, resists corrosion, and is covered by a lifetime warranty. The mower has a 10 in. high wheel design and the deck features 7 position single point height adjustment to easily select your grass height between 1-3/8 in. and 3-3/4 in. With the 3-in-1 mowing functions you can choose between bagging, mulching, or side discharge functions. Includes 40V 5.0 Ah battery and charger and is backed by a 3-year warranty. Item assembled weight – 83.78 lbs.
  • Highly efficient brushless motor provides more torque, quiet operation and longer life
  • Up to 30 mins. of runtime on fully charged battery
  • Durable steel 21 in. cutting deck gets the job done quicker and more efficiently
  • The convenient 3-in-1 cutting deck lets you choose your cut finish from mulching, bagging or side discharge
  • Self-propelled drive system with variable speed rear-wheel drive lets you easily maneuver and tackle any terrain
  • Single lever 7-position height adjustment from 1-3/8 in. to 3-3/4 in. 
  • No gasoline, no pull cord, no spark plug, no maintenance
  • Hassle free push button start
  • Includes 5.0 Ah battery & quick charger
  • Item assembled weight - 83.78 lbs.
  • 3-year warranty
  • (1) 40V 21-inch Self-Propelled Brushless Cordless Lawn Mower
  • (1) Grass Collection Bag
  • (1) 5.0 Ah Battery
  • (1) Battery Charger
  • (1) Owner's Manual
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Horsepower

0 HP

Engine make

OEM Branded

Number of cutting positions

7

Weight

83.78 lb

Warnings

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Customer ratings & reviews

4.2 out of 5 stars
stars
371 ratings259 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars65% (240)
  2. 4 stars15% (57)
  3. 3 stars7% (25)
  4. 2 stars5% (17)
  5. 1 star9% (32)

Reviews summary

Pros

  • : Operates with minimal effort required.
  • : Handles thicker grass and normal lawns.
  • : Offers great value considering features and performance.
  • : Cuts up to 1 acre on a single charge.

Neutral

  • : Can be flexible and independent, but speed and battery life vary.
  • : Can last up to 45 minutes, but may require multiple charges.
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Showing 1-3 of 259 reviews

Oct 31, 2026
Reviewer name: Denise
Top Reviewer
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Really good lawn mower

So far so good. Not that loud compared to other mowers. Cuts really well. The only bad thing is that the compartment that holds the grass cuttings is not that big but no big deal. Nice size for cutting a big area. Different options for cutting heights. Overall a good mower.

Helpful?5CY2NQ0ZYG1J291404933
reply from Greenworks Tools

Thank you for your feedback, Denise. We are glad to hear you are enjoying the mower's cutting performance, quieter operation, and range of cutting height options. We also appreciate your comments about the grass collection bag capacity. Feedback like yours helps us better understand what features matter most to our customers. For helpful tips and product information, be sure to check out the Greenworks YouTube channel. If you ever need assistance, our Customer Success team can be reached through the online chat feature on the Greenworks Tools website or by calling 1-888-909-6757.

Nov 4, 2026
Reviewer name: Elizabeth
Top Reviewer
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

I made the best choice for my yard

I have a normal medium-sized yard, I suppose and I did check for the correct width for my sized yard. 21-inch. Being a woman who enjoys mowing my own yard ( I know where all of my plants are planted), I knew that I wanted another battery lawnmower instead of a messy gas engine. I used the heck out of my Sunjoe, and it lasted 6 years. I researched for maybe 2 weeks, including a rabbit-hole down Youtube lawnmowing videos. I chose this one after considering factors such as battery specs, price and reviews. I always read the reviews! That is where you really learn the TRUTH. I Love this mower, after using it 4 times, I am very pleased. I feel like I did well in chossing this particular model and finding the best price on Walmart of all places! Free delivery and shipping with Walmart and I didn't even have to leave my house! also: Just go ahead and pay the tiny ampount for the Allstate Complete Warranty. It is worth it in this case, being very cheap and comprehensive.

Helpful?5CY2NQ0ZYG1J291404933
Oct 26, 2026
Reviewer name: Marian
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

I love this battery operated Mower!

This mower is awesome!! I love the way it handles. Made my lawn look so nice and even. I love not having to deal with filling the gas and having gas and oil smells in my garage. I love being able to remove the battery, then turn the mower on its side and spray it off after mowing. My new favorite thing!

Helpful?5CY2NQ0ZYG1J291404933
Current price is $449.00$449.00/ca
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