40V 20" Brushless Lawn Mower w/ 4.0 Ah Battery and Charger

In stock
Model
2516302
20-Inch Cordless Mower is rated 4.6 out of 5 by 112.
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Mow the toughest yards with 2x more torque!

  • Deck Size: 20”
  • What's Included: One (1) 40V Battery (4.0 Amp hours) plus Charger
  • Runtime: Up to 50m.
  • Charge Time: 40m per 40V Battery (4.0 Ah Battery)
  • Acreage: Up to 1/3 Acre
  • Power 60+ Tools with any Greenworks 40V Battery
$349.99
In stock
 
2x more torque takes the work out of yard work
Powerfully smart. Tackle the toughest yards, one-handed—because our smart mowers never bog down. When grass gets thick, tall, or wet, Greenworks sensors tell our TRUBRUSHLESSTM motor to rush power to the mower blades. The end result? The perfect lawn, every time.

Powerfully tough. The deck is forged with heavy-duty steel, ready to tackle any terrain. Add in algorithms and a brushless motor to reach unrivaled blade speed. Ka-pow!

Powerfully easy. Simple to start with just the push of a button. Gentle on the ears because it mows quietly. A cinch to store in small spaces—you can even hang it up if you want to.

Additional features include a 3-in-1 bagger, mulcher, or side discharge, five adjustable cutting heights, and a handy runtime display.

Zero gas smell. Zero pull cords. Zero maintenance. Zero pollution breathed. Zero time wasted.

Key features
20" Deck Size - Durable steel that plows through the tallest grass
Push Button Start - Press and mow, no more cord yanking
Intelligent TRUBRUSHLESSTM Motor Technology - 2x more torque, more power, longer runtimes, quiet operation, and extended motor life
Innovative SmartCut™ Technology - Senses grass and auto-adapts power for the perfect cut
EZ Fold™ handles are simple to use - Just pull, fold, and store in seconds – taking up to 70% less space
3-in-1 Design - For easy mulching, bagging, or side discharge
Battery Powers 60+ 40V Products - One battery to mow, blow, cut, trim, cultivate, and more!
The No List
No Gas Smell. You no longer have to smell like gas after mowing
No Emissions. Save money and breathe clean air
No Maintenance. No tune-ups, no mixing fuels, no messy spills
Low Noise. Easy on the ear, low decibel mowing
Warranty + Service
4 year tool limited warranty
4 year battery warranty
Dedicated Support 1-888-909-6757
Power 60+ Tools with any Greenworks 40V Battery
Power:
Cordless
Voltage:
40V
Ideal For:
Up to ⅓ Acre
Drive System:
Push
Brushless Motor:
Yes
SmartCut™ Technology:
Yes
Deck Size:
20 Inches
Discharge Features:
3-in-1
Deck Material:
Steel
Cutting Heights:
5 Position
Max Cutting Height:
3-⅜ Inch
Min Cutting Height:
1-⅜ Inch
Front Wheels:
8 Inches
Rear Wheels:
10 Inches
Tool Warranty:
3 Years
Battery Warranty:
3 Years
Battery Capacity:
4.0 Ah
  • (1) 40V 20" Brushless Cordless Lawn Mower
  • (1) Grass Collection Bag
  • (1) 4.0 Ah Battery
  • (1) Battery Charger
  • (1) Owner's Manual

WALK BEHIND MOWERS FAQ

What maintenance is required for my Greenworks mower?

Greenworks mower units require much less maintenance than a traditional gas unit. However, It will still require routine seasonal maintenance. After each use, we advise you empty the bag (if bagging has been used), then check/clean off debris on the side discharge and rear slot, clean the underside of the deck with a cloth, and wipe the unit down. If there is harder debris stuck to the underside, you may want to use a rubber deck scraper. Make sure to check the unit for loose nuts and bolts after use and secure them if needed. Do not expose this unit to water. Check the blade for any damage/dullness and replace or sharpen as needed. Store the unit in a cool, covered, and dry location such as garage or shed. If you have a battery-operated tool, batteries and chargers should be stored indoors. Please refer to your manual for more guidance on mower/battery maintenance and storage.


When should I cut my grass?

Here are some mowing tips that may be helpful: • Mow when grass is dry. • Mow no more than 1/3 of the length of grass at a time. • Mow in the morning or late afternoon to reduce the heat stress on the newly cut grass. • Alternate mowing patterns each time you mow. As grass develops a grain based on your cutting direction it will lean towards the direction of your mowing path. Changing the pattern allows better vertical growth and helps to keep the cut neater. • Consider mulching. To mulch, remove the bag and insert the mulch plug into the rear of the unit. This will leave the clippings on the lawn allowing the nutrients and nitrogen contained within them to return to the soil and allow the remaining grass to recycle them (always discharge the mulch towards a previously cut area to prevent your mower from bogging down). • Leave grass a little higher in shaded areas. This keeps them healthy in relatively nutrient poor conditions. • Always keep in mind what conditions your variety of grass prefers. If your grass prefers cooler climates, reduce the frequency with which you mow and increase the cutting height of your mower during hot seasons to compensate for the reduced growth rate these varieties may experience in this type of weather.


Do I always need to use my self-propelled feature when operating a self-propelled mower?

No, you don't have to engage the self-propelled feature to operate a self-propelled unit as there are two separate motors. Familiarize yourself with the self-propelled feature and the cutting feature of your unit (instructions are inside the manual). Once you understand these two features, you can engage the blade without using the self-propelled feature.


Can my Greenworks mower cut up pine cones, branches, twigs and other yard debris laying on my lawn?

Greenworks mowers are designed for grass, weeds and foliage. It's not advisable to depend on the mower to mulch any other types of debris. Before operation, please thoroughly inspect the area where the mower is to be used. Remove all stones, sticks, wire, toys, and other objects that could be tripped over or thrown by the blade. Thrown objects can cause serious personal injury.


Can I use my mower in wet conditions such as rain?

For safety reasons (which can be found inside your owner's manual under safety information), we advise not using the mower in wet conditions as unstable footing could cause operators to slip, causing a potential hazard. *The 60V X-RANGE line which features IPX4 weather-resistant construction can be safely used in damp conditions. Be mindful of your footing during use in potentially slippery conditions.*


What does SmartCut™ mean?

The SmartCut™ feature is designed to maximize run time and battery life by automatically detecting the length of grass and adjusting its power or throttle for the optimal cut. With this feature, the rotational speed of the blades will vary. For example, the blades will automatically spin faster when you hit thicker grass.


Does my Greenworks mower unit require gas or oil?

No! Gas and oil are not required to operate our units. Greenworks mowers emit zero emissions and are either battery operated or corded.


Is the battery from my Greenworks mower interchangeable with the other units?

Each voltage line has its own set of interchangeable tools and batteries but are not interchangeable across different voltage lines. For example, 24V batteries are only interchangeable with 24V tools, 40V batteries are only interchangeable with 40V tools, etc. To see compatible tools within each voltage line, select shop by voltage on the Greenworks site or follow the link: https://www.greenworkstools.com/shop-by-voltage If you’re still unsure if your unit is compatible, please contact us at info@greenworkstools.com for further assistance. We’re happy to help!


How do I start my mower unit?

Make sure you are starting the unit in the following order, or it will not start: 1. Push down and hold the safety switch button. While pressing the safety switch button with one hand, use your other hand to simultaneously pull the bale switch towards you. 2. Once the machine turns on, you can let go of the safety button and continue to hold the bale (lever) handle. The unit will only start when the safety button is pressed first, followed by the bale switch. If it is reversed, the unit will not power on. For some of our EZ Fold™ units the start sequence will not affect the unit. Use the correct batteries according to the unit and ensure the batteries have adequate charge. You can either push the button first or pull up the handle—these models are not affected by the start order. For corded units, ensure you have the correct extension cord (reference the owner’s manual) and power from your outlet. If you’re using a battery unit, ensure the battery has a full/adequate charge. However, please always refer to your owner’s manual for verification on the starting process as this would be the most accurate source of information.


Can I use a different Greenworks Amp hour (Ah) battery in my unit?

Yes! For most of our current units, as long as the batteries are from the same Greenworks voltage line (24V batteries with 24V tools, 40V batteries with a 40V tools, etc.), the amp hours (Ah) are interchangeable. Please refer to the below link for our voltage line: https://www.greenworkstools.com/shop-by-voltage If you are unsure if your battery is part of a voltage line that can be interchanged, please contact us at info@greenworkstools.com for further assistance. *Exceptions for our Greenworks 60v 8.0Ah and certain chainsaws in the 80v line.*


What does brushless mean?

A brushless unit has a brushless motor. While conventional motors have carbon brushes which tend to wear over time, brushless motors use magnents instead. This allows the motor to have a longer life, produce less heat, provide more torque, and use less battery. Basically, a brushless motor is a more powerful and efficient upgrade to the traditional brushed motor.


Does battery temperature matter?

Yes! The temperature of the battery should not be too warm or too cold. If the battery is too cold or too warm it may not be operatable—that's why it's important to let your battery reach room temperature prior to use. To avoid battery temperature issues, batteries should be stored indoors in a dry and cool location. More information on battery storage and temperature can be found in inside your owner’s manual.


Why isn’t my mower turning on?

Corded mowers: Make sure you are using the correct size extension cord by following the guide inside the owner’s manual. Check that the extension cord is not loose when inserted into the mower’s plug and ensure a secure connection to a live 120V AC, 60 HZ AC receptacle. Battery operated mowers: Check to ensure the battery capacity has an adequate or full charge, then secure the battery into place. If the battery is loose or can easily be removed, it doesn't have a complete and secure connection. Follow the starting guide located in your owner’s manual for further instruction.


Why does my mower cut grassy unevenly?

Your yard may be too rough or uneven. For a better cut, try moving the cutting height to a higher position when mowing on uneven surfaces.


Why isn’t my mulching working?

First, make sure the mulching plug is inserted into the rear slot at the back of the unit. Next, remove the bag. If too many grass clippings are sticking to the underside of the deck when mowing, the grass is too wet. Wait until the grass dries before mowing again. Also, it's important to keep the underside of the deck clean and clear of debris so that the blade can efficiently cut and mulch.


How do I stop my mower from vibrating?

Slight vibration is normal. However, if you notice an increase or difference in the vibration of the unit during use there may be an issue with the blade or motor shaft. If it’s an issue with the blade, simply replace the worn blade. However, if the motor shaft is damaged or bent you'll need to bring it into a service center. Please contact us at 1-888-909-6757 for further assistance.


Why is my mower hard to push?

Here are some reasons why your unit may be hard to push: • The cutting height is set too low for how tall the grass is—move the cutting height up. • The rear bag is full and is dragging on the ground. Empty the grass bag so it doesn't drag and add weight as you’re mowing. • The underside of the deck is caked with debris. Clean and clear it so the blade can work more effectively. General mower care for best results: • Prior to storage, clean and examine the machine for any damages. • Store the unit in a dry, covered, and cool location like a garage or shed. • Ensure that the unit is stored in a secure location that is not accessible to children or any other persons who should not be operating such machinery.


Can I use my Greenworks mower on hills and slopes?

Yes, though walk behind mower units should not be operated on slopes greater than 15 degrees. This is not a limitation of the unit, but rather to ensure safe footing for the user. When mowing on a hill remember to mow across rather than up and down.

Rated 5 out of 5 by from Great for a small yard. More than enough battery to do my 5400 square foot lot. It folds up nice and quick for a very small footprint in my garage. I have not used the bag or the side shoot but the mulching feature works very good.
Date published: 2022-09-14
Rated 5 out of 5 by from Great purchase. sturdy mower and good power, battery/charger works with my string trimmer, this was a great purchase. Lasts quite a while on one battery even if pretty high grass.
Date published: 2022-09-12
Rated 5 out of 5 by from 20” vertical storage brushless mower works great Assembly was an ease, charged battery full before first mowing. I have a small lawn, 0.2 Acre plot w house. Can mow entire lawn w 1/4 charge. 2nd Greenworks product. 1st was the 16” chainsaw. Both products work great. Like the mower w metal mower body vs plastic. 3 mowing sessions and still impressed. Looking forward to expanding w more greenworks products that fit the 40V 4Ah battery.
Date published: 2022-09-03
Rated 5 out of 5 by from Great mower Great mower. Good for our 1/3 acre yard. Battery life handles well. Power is good, much more than I expected for electric.
Date published: 2022-08-29
Rated 5 out of 5 by from 40v brushless mower Recently picked up have used three times already on an acre and a half property. Battery life is good it uses one battery +1/ quarter of my second battery which is to be expected. Good power throughout the use. I would recommend
Date published: 2022-08-26
Rated 5 out of 5 by from Best purchase ever! Love this mower! It's lightweight, easy to use, and does a great job. I have small front and back yards and I can mow both and still have 1/2 battery life remaining. So glad my old gas powered mower bit the dust
Date published: 2022-08-24
Rated 5 out of 5 by from A peaceful mowing experience. I just love cutting with the battery powered push mower from greenworks it is so quiet. I can hear my cell phone ring and talk on the phone too while I keep on pushing. Also no complaints of noise from whoever I am talking to. Battery life is spot on with about how long I want to push before a water break. I cut a little over one acre with this and use two batteries. The other battery came with my greenworks chainsaw that is awesome also. If you want to get a little exercise and not suck up carbon monoxide while cutting your lawn an electric push mower is the way to go. Buy one you will like it because it has no air filter, gas, spark plug, oil, and the main thing no pull string to start it. I highly recommend this mower.
Date published: 2022-08-14
Rated 5 out of 5 by from Great mower! It does the job well. Can’t complain on any aspect.
Date published: 2022-08-01
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Rated 5 out of 5 by from Great for a small yard. More than enough battery to do my 5400 square foot lot. It folds up nice and quick for a very small footprint in my garage. I have not used the bag or the side shoot but the mulching feature works very good.
Date published: 2022-09-14
Rated 5 out of 5 by from Great purchase. sturdy mower and good power, battery/charger works with my string trimmer, this was a great purchase. Lasts quite a while on one battery even if pretty high grass.
Date published: 2022-09-12
Rated 5 out of 5 by from 20” vertical storage brushless mower works great Assembly was an ease, charged battery full before first mowing. I have a small lawn, 0.2 Acre plot w house. Can mow entire lawn w 1/4 charge. 2nd Greenworks product. 1st was the 16” chainsaw. Both products work great. Like the mower w metal mower body vs plastic. 3 mowing sessions and still impressed. Looking forward to expanding w more greenworks products that fit the 40V 4Ah battery.
Date published: 2022-09-03
Rated 5 out of 5 by from Great mower Great mower. Good for our 1/3 acre yard. Battery life handles well. Power is good, much more than I expected for electric.
Date published: 2022-08-29
Rated 5 out of 5 by from 40v brushless mower Recently picked up have used three times already on an acre and a half property. Battery life is good it uses one battery +1/ quarter of my second battery which is to be expected. Good power throughout the use. I would recommend
Date published: 2022-08-26
Rated 5 out of 5 by from Best purchase ever! Love this mower! It's lightweight, easy to use, and does a great job. I have small front and back yards and I can mow both and still have 1/2 battery life remaining. So glad my old gas powered mower bit the dust
Date published: 2022-08-24
Rated 5 out of 5 by from A peaceful mowing experience. I just love cutting with the battery powered push mower from greenworks it is so quiet. I can hear my cell phone ring and talk on the phone too while I keep on pushing. Also no complaints of noise from whoever I am talking to. Battery life is spot on with about how long I want to push before a water break. I cut a little over one acre with this and use two batteries. The other battery came with my greenworks chainsaw that is awesome also. If you want to get a little exercise and not suck up carbon monoxide while cutting your lawn an electric push mower is the way to go. Buy one you will like it because it has no air filter, gas, spark plug, oil, and the main thing no pull string to start it. I highly recommend this mower.
Date published: 2022-08-14
Rated 5 out of 5 by from Great mower! It does the job well. Can’t complain on any aspect.
Date published: 2022-08-01
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how much does the lawnmower weigh? I have to load and unload it into my Dodge Journey and need to know if I can do it on my own. Thanks.

Asked by: LadyDi
Hello LadyDi, This mower weighs 56 lbs without the battery engaged; the battery will add approximately 4 lbs.
Answered by: Greenworks Support
Date published: 2022-09-09

I have this mower and I absolutely love it. But I'm wondering, will the 80v battery work with this mower?

Asked by: Tango
Hello Tango, Our 80V battery cannot be used with an 40V units and vice versa. Greenworks manufactures a range of voltage platforms from 24V - 80V, each voltage platform has its own set of interchangeable tools and battery but are not interchangeable across different voltage platforms. Only Greenworks batteries, chargers and machines of the same voltage are compatible and interchangeable with one another.
Answered by: Greenworks Customer Care
Date published: 2022-08-19

Will my 40v, 4ah, Model 49472 battery work in this lawn mower, Model 2516302 or a Menards 2535202me mower?

Asked by: bob1224
Hello Bob1224, Yes, your battery model 29472 can be used with both of these mowers!
Answered by: Greenworks Support
Date published: 2022-08-01

Can I use my greenworks 40v 2.0ah gmax battery in this mower? As a company that prides itself on its batteries and the fact that most are interchangeable a chart that provides battery and product compatibility should exist and be easily found on your site

Asked by: Whynochart
Hello Whynochart, While you can use our 40V 2.0Ah battery, please note that this is the lowest running battery in our 40V line. It is important to keep in mind that lawnmowers have a high power draw and deplete smaller batteries quite quickly. 2.0Ah or 2.5Ah batteries will provide a run time of up to 15 minutes, depending on the load. For mowers, it is advised to use at least a 4.0Ah battery but these smaller Ah batteries are a great add-on to get a little more run time when needed.
Answered by: Greenworks Support
Date published: 2022-06-22

Per another post, the replacement blade for the 40volt 20" lawnmower is 2905003 however when I look on the Ordertree site, it shows as 'Out of Stock'. Any idea of when it will be back in stock?

Asked by: Ed T
Hello Ed T, This blade will likely not be on OrderTree until later this year. However, it is available through our helpline at1-888-909-6757 (1-888-90WORKS).
Answered by: Greenworks Support
Date published: 2022-06-07

Ware do I get mower blade for my 40volt 20" deck.

Asked by: Nickydog10
Hello Nickydog10, This unit is compatible with the blade model 2905003; you can purchase it by calling our helpline at 1-888-909-6757 (1-888-90WORKS).
Answered by: Greenworks Support
Date published: 2022-05-17

How much does the 40V 20" Brushless Lawn Mower w/ 4.0 Ah Battery and Charger weigh?

Asked by: another steve
Hello, This mower weighs 56 lbs without the battery engaged; the battery will add approximately 4 lbs.
Answered by: Greenworks Support
Date published: 2022-05-16

Is this power driven or push mower?

Asked by: AmG01
Hello AmG01, This is a push mower.
Answered by: Greenworks Support
Date published: 2022-05-16
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40V 20" Brushless Lawn Mower w/ 4.0 Ah Battery and Charger
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