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SKU: 2500541

Greenworks 80V 21" Brushless Lawn Mower (Tool Only) BONUS: Blade Included


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Key Features

  • Push Button Start
  • Brushless Motor
  • SmartCut™ Automatically Adjusts Power
  • 21" Heavy-Duty Steel Deck
  • 3-in-1 (Mulch, Bag or Side Discharge)
  • Quiet Operation
  • Lightweight
  • Tool Only - Battery and charger not included
  • 4 Year Warranty

Warranty

warranty-image

Description

Welcome to a Life. Powered. by Greenworks. The Greenworks 80V 21" Brushless Lawn Mower – Tool Only delivers powerful, gas-free performance with a brushless motor for more torque, longer runtimes, and extended durability. The 21” steel deck ensures a precise cut, while SmartCut™ technology adjusts power based on grass thickness. Enjoy hassle-free mowing with a push-button start and 3-in-1 versatility for mulching, bagging, or side discharge. Plus, a BONUS extra blade keeps your mower at peak performance. Compatible with 75+ Greenworks 80V tools (battery and charger sold separately) and backed by a 4-year tool warranty for lasting durability.

  • [POWERFUL BRUSHLESS MOTOR]: TRUBRUSHLESS™ motor delivers more torque, longer runtime, and extended motor life compared to brushed alternatives.
  • [DURABLE 21” STEEL CUTTING DECK]: Built for precision cutting and long-lasting performance.
  • [SMARTCUT™ TECHNOLOGY]: Automatically adjusts power output based on grass thickness for optimal performance.
  • [3-IN-1 FUNCTIONALITY]: Mulch, bag, or side discharge clippings for versatile yard maintenance.
  • [BONUS EXTRA BLADE:] Includes an additional blade to keep your mower performing at its best.
  • [EFFORTLESS OPERATION]: Push-button start eliminates the hassle of pull cords for instant power.
  • [LIGHTWEIGHT & EASY TO MANEUVER]: Designed for comfortable operation with less fatigue.
  • [BATTERY PLATFORM COMPATIBILITY]: Works with 75+ Greenworks 80V tools for maximum versatility (battery and charger sold separately).

Specifications

  • Voltage
    80
  • Motor
    Brushless
  • Speed Settings
    Two-Speed (With SmartCut™)
  • No Load Speed
    2800 RPM / 3200 RPM (Turbo)
  • Rated Power of Motor
    XX-kW
  • Battery Ports
    Single Port
  • Batteries/Battery Included
    Not Included / Sold Separately
  • Average Run Times (With 4Ah Battery)
    Up To 45 Minutes
  • Deck Size
    21"
  • Blade Size
    ~20"
  • Deck Height Positions
    7
  • Deck Height Ranges
    1-3/8 - 4" (3.5 - 10.2 cm)
  • Drive Type
    Push
  • Function Type
    3-in-1 (Bagging, Side Discharge, Mulching)
  • LED Headlight
    Yes
  • Vertical Storage
    Yes
  • Bag Capacity
  • Product Dimensions (Assembled)
    175" L x 65.1" H x 107" W
  • Handle Height (Ground to Grip)
  • Tool Only Weight
    29 lbs
  • Package Dimensions
    86.5" L x 59" H x 43.5" W
  • Package Weight
    32.4 lbs
  • Warranty
    4-Year Warranty

Manuals

Includes

  • Greenworks 80V 21" Lawn Mower (Tool Only)
  • Mulch Plug
  • Grass Bag
  • Instruction Manual
  • 4-Year Warranty

Product Videos

Frequently Asked Questions

  • Can I use my Greenworks mower on hills and slopes?
  • 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.

  • 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 emptying the bag (if bagging has been used), then check/clean off debris on the side discharge, 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 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.

  • 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 do not have to engage the self-propelled feature to operate a self-propelled unit. There are two separate motors. Familiarize yourself with the self-propelled feature and the cutting feature of your unit (instruction 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 pinecones, branches, twigs, and other yard debris laying on my lawn?
  • Greenworks mower are designed for grass, weeds, and foliage. It would not be 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. *60V X-RANGE line which features IPX4 weather-resistant construction and 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, also considered a Power Save feature, is designed to maximize run time and battery life by automatically detecting the length of grass and adjusting its power or throttle up when needed. With this feature, the rotational speed of the blades will not always stay the same. They will spin faster automatically when you hit thicker grass.

  • Does my Greenworks mower unit require gas or oil?
  • No, gas and oil are not required for the operation our units. Greenworks mowers are either battery operated or corded (extension cord sold separately). This information can be seen on the product page of each tool and inside the owner’s manual.

  • Is the battery from my Greenworks mower interchangeable with the other units?
  • Greenworks offers a variety of different voltage lines for a wide range of individual residential needs. For example, we offer: 24v, 40v, 60v and 80v. Each voltage line has their own set of interchangeable tools and batteries but are not interchangeable across different voltage lines. To see compatible tools within each voltage line select shop by platform on our site. 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?
  • 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. Make sure you are starting the unit in the following order, or it will not start: 1. Push down 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. 3. 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. 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.

Customer Reviews

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M
Marauder 69
Game changer!

I was a bit reluctant to forego my Toro (that became very hard to start).
But this has been a huge surprise.
As one who always bagged, when I put on the high rise blade it did a decent job, not as good as gas, but pretty satisfactory.
I’ve got a fair sized front and back lawn and can do both w/o recharging.
I’ve discovered that it cuts so clean (new blade?) that mulching (which is recommended by experts) is very satisfactory.
The self propelled feature takes a bit to get used too, but my wife can mow with one hand now!