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Internet #314738585

Model #2516402

Store SKU #1005781066

21 in. 40-Volt Battery Cordless Self-Propelled Lawn Mower with 5.0 Ah Battery and Quick Charger

  • Self-propelled for easy operation
  • Lightweight and ergonomic deck ideal for detailed landscaping
  • No gas, emissions, oil mixing or pull starts
  • See More Details

Frequently Bought Together


Product Overview

The Greenworks 21 in. 40-Volt Self-Propelled Mower is ideal for yards up to 0.5 acres. This tool is lightweight and starts instantly. It requires virtually no maintenance, which means no oil changes, air filters or gas cans are necessary. This may be a battery-powered lawnmower, but it still delivers gas-like power. with folding capabilities, this tool can be more easily stored. The Greenworks self-propelled mower is primarily black with vibrant green accents. Accessories such as a mulcher, side discharge attachment, storage bag, battery and charger are included with the lawnmower. The battery included is compatible with Greenworks' collection of more than 40 lawn tools. There is no need to get multiple batteries as 1 could power all of the tools you need.

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Size of Yard1/4 - 1/2 Acre1/4 - 1/2 Acre1/4 - 1/2 Acre1/2 - 1 Acre
Power TypeBatteryBatteryBatteryBattery
FeaturesAdjustable Cutting Height,Brushless Motor,Foldable handle,Mulching Lawn Mower,No Oil Change RequiredAdjustable Cutting Height,Assembly Required,Bagger,Brushless Motor,Collapsible,Mulching Lawn Mower,Single-lever height adjustmentAdjustable Cutting Height,Adjustable Speed,Assembly Required,Bagger,Battery level indicator,Brushless Motor,Collapsible,Electronic Ignition,Foldable handle,Headlights,Mulching Lawn Mower,Residential,Single-lever height adjustment,Tool-free adjustmentsBagger,Brushless Motor
Drive TypeRear-wheel DriveRear-wheel DriveRear-wheel DriveRear-wheel Drive
Start TypePush Button StartPush Button StartPush Button StartPush Button Start
Cutting Width20 inches21 inches21 inches24 inches
Rear Wheel HeightHigh WheelHigh WheelHigh WheelHigh Wheel
Recommended TerrainFlat,Sloped,UnevenFlat,SlopedFlatFlat,Sloped
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Assembled Depth (in.)
33.07 in
Assembled Height (in.)
21.65 in
Assembled Width (in.)
65.35 in
Blade Length (in.)
21 in
Cutting Width
20 inches
Front Wheel Size (in.)
Mower Deck Width
21 in
Rear Wheel Size (in.)


Amperage (amps)
5 A
Assembly Required
Battery Amp Hours
5 Ah
Battery Run Time (min.)
Battery Type
Lithium Ion
(1) 5 Ah Battery & Charger Included
Charge Time (hours)
Charger Included
Charger Included
Cutting Height Options
Cutting Options
Deck Material
10 Gauge Steel
Deck Type
Drive Type
Rear-wheel Drive
Engine Torque (ft.-lb.)
Adjustable Cutting Height,Brushless Motor,Foldable handle,Mulching Lawn Mower,No Oil Change Required
Lawn Mower Type
Self-Propelled Lawn Mower
Maximum Cutting Height (in.)
Minimum Cutting Height (in.)
Mower Size Type
Number of Batteries Required
Number of Blades
Number of Handlebar Positions
Number of Total Batteries Included
Power Type
Product Weight (lb.)
83.78 lb
Rear Wheel Height
High Wheel
Recommended Terrain
Size of Yard
1/4 - 1/2 Acre
Start Type
Push Button Start
Tools Included
Voltage (v)
Walk Behind Mower Type
Self Propelled

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Manufacturer Warranty
3 year tool / battery limited warranty

Questions & Answers


I have a new 2516402 40 volt self propelled lawn mower. Never been run. The self propelled featur...

Asked by War March 24, 2021

Hello War - So sorry to hear that you are having an issue with our product. We take each matter very seriously and want to make sure you are happy. At GreenWorks we stand behind each product we manufacture. Please reach out to our team directly at 1-888-909-6757 or by sending an email to info@greenworkstools.com. We ask that you please have access to the unit so that we can complete troubleshooting with you and gather necessary unit information.

Does this have headlights on it?

Asked by Joe February 22, 2021

Hello Joe - Yes this unit comes with LED headlights. When the mower is ready to start, you may grab the start handle or the self-propel lever to turn on the LED headlights. Release the start handles and self-propel levers to turn off the headlights.

Customer Reviews

  • 4.7
    out of 90 reviews
  • 97% recommend this product
Filter by:
Showing 1-10 of 90 reviews
Love my lawnmower
I was gifted the lawn more of my choice by my daughter and son-in-law as a house warming gift. I chose the green works 21" 60 V. Effort my son-in-law doubted its ability. He actually put the lawn mower together for me and did the 1st cut and he was impressed. I live on a quarter acre with a small house and I have lots of grass to cut. This lawn mower cuts all my grass on one battery if I don't use the self propelled option. If I used the self propelled option last about 3/4 of my property. I am very happy with my choice. It has lights that I do appreciate because when I come home from work and finally get to cutting the grass sometimes it's dark by time I finish. I was impressed with this lawn mower so I bought a 60 V snow blower at the end of the Winter. I will review that next Winter when I actually get to use it. I plan on purchasing more green works products. The benefit of not having to run out to get gas because you ran out or not having to store gas in the garage with small children around is very convenient, Especially for a single grandmother raising 5 of her grandchildren. That's one safety aspect I don't have to worry about. I added a picture I run out of gas before the battery runs out.
by G ma Terri
Beyond My Expectations
Works great! Cuts my entire lawn with about a quarter charge. Plenty of power, easy set up and start. Stores upright to keep storage space to a minimum.
by SWFLJohn
Best purchase EVER!!!
I have never written a review before, but feel compelled to express how fond I am of my Greenworks lawnmower. I have the 40V self propelled which is powerful enough to cut my front and side yard, with power to spare. Lightweight enough to haul to my daughter's house (I am 55 years old) for her to use in her front yard. She is looking to purchase one for herself after trying mine. I have added pictures to show how much I cut, and the power I had left over!
by Dee64
Easy to use, control and store
Easy to start and control. Stands upright to store.
by SPape
Received my 21 inch 40 volt mower. When I got the mower the packaging was ok. The straps holding the handle were not in place. Had one cable bracket that was broke. No big deal, didn't affect the mower. Used the mower and it worked great. Battery lasted 40 min. Almost finished the lawn. Don't need to use the self propelled as much as the mower is lighter than a gas one. Had an extra 4 ah battery that finished the job. Would recommend. Go green.
by Kuby
You should switch to electric.
Bought this so I could use my Greenworks chainsaw battery as a backup. The supplied 5AH mower battery (option) is about twice what I need for normal mowing though. Mower works great, the easy height adjustment is well appreciated. Has plenty of power and the adjustable self propelling speed lever works great. Quiet and no gas! Cheaper than a gas model and much better.
by Mark B999
by RBro
Great Product
I like everything about this mower thus far. Light weight but powerful, it is just what I wanted and needed. It is not nearly as loud or messy as my gas powered mower. Even my small engine mechanic/gas powered engine lover friend was impressed with the mower.
by Deb Younger IL
Great piece of equipment
The Lawnmower works great, it is easy to adjust height of cut, light enough to push without using self propel, and the bag was easy to install and remove when full. Will continue to buy Greenworks tools.
by Wulfgar27
The perfect electric mower.
I bought this lawnmower for the smaller areas around my house and other areas my zero turn mower can't do as easily. Man is this mower quiet! It starts up and stops extremely fast and I love not having to mess with a gas engine anymore. 11/10, would buy again.
by Trav B
Showing 1-10 of 90 reviews