To see product details, add this item to your cart. You can always remove it later.
Added to

Sorry, there was a problem.

There was an error retrieving your Wish Lists. Please try again.

Sorry, there was a problem.

List unavailable.

Greenworks 40V 21" Brushless Cordless (Self-Propelled) Lawn Mower (75+ Compatible Tools), 5.0Ah Battery and Charger Included

4.2 4.2 out of 5 stars 1,410 ratings

To see product details, add this item to your cart. You can always remove it later.

Delivery & Support

Select to learn more
Ships from
Amazon.com
Eligible for Return, Refund or Replacement within 30 days of receipt
Customer Support
Ships from
Amazon.com
  • You will be able to track your Amazon order from point of shipping to your doorstep in your orders. If you need more help with tracking your package, please visit Track Your Package.
  • Learn more
Eligible for Return, Refund or Replacement within 30 days of receipt
  • This item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
Read full return policy
Customer Support
Fixing things is quick & easy.

Our specialist Customer Support for large items dispatched from Amazon is on hand to help with your order. Contact us via phone or chat 7 days a week.
21" SP Mower (5.0Ah)

Purchase options and add-ons


About this item

  • 40V 21” LAWN MOWER - Get more done, faster, with Greenworks electric lawn mowers. This 40V self-propelled lawn mower provides up to 45 minutes of run-time with fully charged 5.0Ah battery (varies based on grass condition and operator technique).Front wheels : 8 Inches
  • BRUSHLESS MOTOR / DURABLE STEEL DECK - This electric mower features a durable 21" deck, and a highly efficient brushless motor that provides more torque, quiet operation, and longer life
  • SINGLE LEVER HEIGHT ADJUST - 7 position height adjustment provides the best cut in all environments. 3-in-1 design offers rear bag, side discharge, and mulching capabilities
  • SELF-PROPELLED - Rear wheel drive power increases traction to tackle the toughest backyard terrain
  • VERTICAL STORAGE - Save 70% more space with vertical storage
  • MAINTENANCE FREE - The walk behind lawn mower is virtually maintenance free, with no gas, no oil, and no emissions. It starts instantly, is quiet, and delivers the power you need

Customer ratings by feature

Easy to assemble
4.4 4.4
Easy to use
4.3 4.3
Maneuverability
4.1 4.1
Light weight
4.1 4.1

Frequently bought together

$463.49
Get it as soon as Monday, Apr 1
In Stock
Ships from and sold by Amazon.com.
+
$74.99
Get it as soon as Monday, Apr 1
In Stock
Ships from and sold by Amazon.com.
+
$12.35
Get it as soon as Monday, Apr 1
In Stock
Ships from and sold by Amazon.com.
Total price:
To see our price, add these items to your cart.
Details
Added to Cart
Choose items to buy together.

Compare with similar items

This Item
Greenworks 40V 21" Brushless Cordless (Self-Propelled) Lawn Mower (75+ Compatible Tools), 5.0Ah Battery and Charger Included
Greenworks 40V 21" Brushless Cordless (Self-Propelled) Lawn Mower (75+ Compatible Tools), 5.0Ah Battery and Charger Included
Recommendations
Greenworks 80V 25" Brushless Cordless (Self-Propelled) Dual Blade Lawn Mower (LED Headlight + Aluminum Handles), Battery And Charger Not Included
dummy
Greenworks 48V (2 x 24V) 21" Brushless Cordless (Self-Propelled) Lawn Mower (LED Headlight), (2) 5.0Ah Batteries and Dual Port Rapid Charger Included (125+ Compatible Tools)
dummy
Greenworks 40V 25" Brushless Cordless (Self-Propelled) Lawn Mower (75+ Compatible Tools), (2) 4.0Ah Batteries and Dual Port Rapid Charger Included
dummy
Greenworks 48V (2 x 24V) 21" Brushless Cordless (Self-Propelled) Lawn Mower (LED Headlight), (4) 4.0Ah Batteries and (2) Dual Port Rapid Chargers Included (125+ Compatible Tools)
dummy
EGO Power+ LM2102SP-A 21-Inch 56-Volt Lithium-ion Self-Propelled Cordless Lawn Mower (2) 4.0Ah Battery and Rapid Charger Included
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Price$463.49-8% $530.85
List:$579.99
$499.99-15% $594.99
List:$699.99
$599.00-21% $549.00
List:$699.00
Delivery
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Wednesday, Apr 3
Get it as soon as Tuesday, Apr 2
Get it as soon as Monday, Apr 1
Customer Ratings
Easy to assemble
4.4
5.0
4.7
4.4
4.7
4.8
Maneuverability
4.1
4.6
4.2
3.7
4.1
4.6
Light weight
4.1
4.4
4.3
4.0
4.3
4.4
Battery life
3.5
4.7
3.2
3.2
4.0
4.4
Easy to use
4.3
4.7
4.5
4.6
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
power source
Battery Powered
Battery Powered
Battery Powered
DC
Battery Powered
Battery Powered
material
Alloy Steel
Stainless Steel
Alloy Steel
Stainless Steel, Plastic
Alloy Steel
Metal
cutting width
21 inches
25 inches
21 inches
25 inches
21 inches
21 inches
number of positions
5, 7
5
7
7
7
6
operation mode
Automatic
Automatic
quiet operation
Automatic
Automatic
weight
21.65 pounds
70.55 pounds
77 pounds
76.22 pounds
62.61 pounds

From the manufacturer

Self Propelled
45 Minutes Of Runtime
NO GAS,NO OIL,NO EMISSION

Product guides and documents

Product information

Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Feedback

Greenworks

Greenworks 40V 21" Brushless Cordless (Self-Propelled) Lawn Mower (75+ Compatible Tools), 5.0Ah Battery and Charger Included


Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.

Where did you see a lower price?

/
/
/
/
Please sign in to provide feedback.

Looking for specific info?

Product Description

The Greenworks 40V Mower features a 20" poly deck, dual blades, 2-In-1 design, dual battery ports with automatic switchover, 5-position single handle height adjustment, push button start, 4-year tool, 2-year battery warranty.

Customer reviews

4.2 out of 5 stars
4.2 out of 5
1,410 global ratings

Customers say

Customers like the performance and ease of use of the lawn mower. For example, they mention it works well, is easy to push and maneuver, and does a decent job. That said, some complain about the battery life. Opinions are mixed on speed adjustment, value, and quality.

AI-generated from the text of customer reviews

147 customers mention129 positive18 negative

Customers like the ease of use of the lawn mower. They mention that it's really easy to push, maneuver, and effective at mulching. The self-propelled feature is a lifesaver when mowing over dips and slopes. Customers also praise the mower for being easy to clean and the fact that it folds up.

"...-7 easy mowing height adjustments-easy everything ... start, self propelled, instructions, assembly..." Read more

"...The handle folds easily for storage. The mower is light weight and easy to push...." Read more

"...That is also not a flaw. The self propulsion is electric, not hydraulic. The clutch does not disengage instantly...." Read more

"...The mower is easy to assemble if you have any mechanical inclination...." Read more

131 customers mention97 positive34 negative

Customers like the performance of the lawn mower. For example, they say it's easy to operate, does a decent job, and works great for their grass. Some appreciate the drive function that works even when the blades aren't spinning. Overall, most are happy with the performance and functionality of the mower.

"...-powerful multi speed self propelled. Also, this works without starting mower, unlike gas mowers...." Read more

"...Overall, the mower works well. Easy to use and it cuts well...." Read more

"...against greenworks for not only a dangerous item, but an item that does not work and a company that's outright refusing to provide any sort of help..." Read more

"...about the mower, cuts well, and with one of the newer batteries it works great. But it eats older batteries really fast" Read more

46 customers mention34 positive12 negative

Customers like the weight of the lawn mower. For example, some mention it's light weight, easy to maneuver, and well built.

"...The handle folds easily for storage. The mower is light weight and easy to push...." Read more

"...Key is inserted. Deck and blades are perfectly clean. Grass is very light...." Read more

"...I decided to try a new one & so glad I did. This battery is small & light & the mower cuts as well as my gas mower which I have happily stopped using..." Read more

"...I used a self propelled gas mower, but it is very heavy, and a slip convinced me, enough is enough.First, the weight. It is not 21lbs...." Read more

38 customers mention36 positive2 negative

Customers are satisfied with the noise level of the lawn mower. They mention that it is very quiet compared to fuel-based mowers.

"...-very quiet compared to gas. 1/4 - 1/2(max) the noise-battery life? I used 5ah battery to mow that area 2x for about 20 min...." Read more

"Very happy with this mower! It's quiet and runs very smooth...." Read more

"...Like the power, like the quietness, like the ease of starting, like the looks...." Read more

"...It’s quiet, makes a nice cut, and the rear wheel drive helps out on those inclines in the backyard. The bag attachment is a gem, easy to unload...." Read more

135 customers mention86 positive49 negative

Customers are mixed about the quality of the lawn mower. Some mention that it makes a nice cut, and is very high quality. However, others say that it only runs for just over 20 minutes before needing a recharge, the battery overheats, and the power drive dies at the same time.

"...-easy 5-10 minute assembly out of box-everything very solidly built, like a “real mower”..." Read more

"...I have only used it in side discharge mode but it is nice to have the bagger option." Read more

"...4 stars is the battery - specifically the fact that it only runs for just over 20 minutes before needing a recharge...." Read more

"...I have found the cutting to be very good and leaves my lawn with a manicured appearance...." Read more

55 customers mention32 positive23 negative

Customers are mixed about the speed adjustment of the lawn mower. Some mention that they love the variable speeds and the self-propelled feature has an adjustable speed. They say that it self regulates the blade speed based on perceived load. However, others say that at the lowest setting, it is way too fast for them and that Greenworks needs to improve the run time and shorten the charge time. They also mention that the mower would start, run for 3 seconds, then turn off and that the grass keeps stalling.

"...-powerful multi speed self propelled. Also, this works without starting mower, unlike gas mowers...." Read more

"...Greenworks needs to improve the run time and shorten the charge time. I'm also not thrilled with the lack of recyclability of this type of battery." Read more

"...The mower seems to self regulate the blade speed based on perceived load by the mower. The handle folds easily for storage...." Read more

"...There is a delay, often of several seconds...." Read more

38 customers mention17 positive21 negative

Customers are mixed about the value of the mower. Some mention it's great for the money, while others say the process of ordering and the product itself has been a nightmare. Some say the mower is too fast and does not do a good job when their grass is long.

"...Biggest waste of money I've made in a while!Stops mowing every few feet and beeps repeatedly...." Read more

"...It is difficult to make high torque and high RPM mowers, economical and battery efficient. (i'm a nerd, gas mowers are overall better)" Read more

"...That said, this 40 volt lawnmower is not up to task. The singular battery supplied died out after no more than 15 minutes of use...." Read more

"...In short, I love this mower. Money well-spent!" Read more

162 customers mention46 positive116 negative

Customers are dissatisfied with the battery life of the lawn mower. They mention that it eats older batteries really fast, and the battery is marginal. Some say that the battery sinks down into the mower and is almost impossible to remove.

"...all the complaints I see within of people saying the battery is hard to remove once inserted..." Read more

"...some reviews that say some of these greenworks mowers are difficult to remove the battery, I've had no issues with that at all, plenty of room to..." Read more

"...Speaking of power, power is adequate for thin and medium grass. I would not call the mower under powered...." Read more

"...I'm mowing just over a half-acre, and it takes two recharge cycles. So, it would take me about 7.5 hours to complete the job - ridiculous!..." Read more

It goes to the left when going forward
4 Stars
It goes to the left when going forward
It’s like the left front wheel is off a bit
Thank you for your feedback
Sorry, there was an error
Sorry we couldn't load the review

Top reviews from the United States

Reviewed in the United States on May 11, 2018
Size: 21" SP Mower (Tool Only)Verified Purchase
17 people found this helpful
Report
Reviewed in the United States on July 15, 2023
Size: 21" SP Mower (5.0Ah)Verified Purchase
8 people found this helpful
Report
Reviewed in the United States on June 24, 2023
Size: 21" SP Mower (5.0Ah)Verified Purchase
3 people found this helpful
Report
Reviewed in the United States on June 26, 2020
Size: 21" SP Mower (Tool Only)Verified Purchase
47 people found this helpful
Report

Top reviews from other countries

Translate all reviews to English
Cliente de Amazon
4.0 out of 5 stars Buena en general, el ajuste de altura es extremo,
Reviewed in Mexico on June 16, 2021
Size: 21" SP Mower (Tool Only)Verified Purchase