80V 21" Battery Lawn Mower - Brushless, 4Ah Battery and Charger Included
Key Features
Key Features
- ✓Brushless Motor
- ✓SmartCut™ Automatically Adjusts Power
- ✓Side Discharge
- ✓Mulching
- ✓Rear Bagging
- ✓Quiet Operation
- ✓Vertical Storage - Foldable Handles
- ✓21" Heavy-Duty Steel Deck
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Compatible With :
80V 21" Battery Lawn Mower - Brushless, 4Ah Battery and Charge...
Description
Description
- [DURABLE BATTERY LAWN MOWER] The durable 21-inch steel deck on this 80V battery lawn mower allows you to handle large areas of grass quickly and easily. With 7 different cutting height options, you can ensure the best cut in all environments.
- [LIGHTWEIGHT PUSH DESIGN] Work at your own pace and embrace simplicity with our lightweight, easy-to-use push battery lawn mower - perfect for homeowners who prefer manual control.
- [HIGH-PERFORMANCE BATTERY MOWER] Highly efficient brushless motor provides increased torque, longer run times, quiet operation, and extended motor life. Equipped with innovative Smart Cut Technology that automatically adjusts blade speed when more power is needed for the best cut possible on your battery lawn mower.
- [VERSATILE CUTTING OPTIONS] Convenient 3-in-1 cutting deck lets you choose your cut finish from mulching, bagging or side discharge with this electric battery lawn mower.
- NEVER STOP CUTTING Individual battery port to accept all your Greenworks 80V batteries. Up to 45 minutes of runtime and a charge time of 60 minutes.
- [SPACE-SAVING STORAGE] Adjustable handle positions suit your height with ergonomic easy-to-use controls for ultimate comfort. Plus, use up to 70% less space in your garage with folding handles for compact vertical storage of your battery lawn mower.
- Colours may Vary
Specifications
Specifications
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Voltage80V
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Weight59.52 lbs.
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Assembled Product Dimensions62.2" x 22.05" x 38.19"
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Package Dimensions34.45" x23.62" x17.52"
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Package Weight66.5 lbs (30.16 kg)
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Charge Time for (1) 4.0Ah BatteryUp to 60 Minutes
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Battery Ampere-Hours4.0Ah
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Battery IndicatorPower Display on Battery
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MotorBrushless
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Rated Power of Motor1.5 kW
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No Load Speed3200 RPM
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Deck Size21"
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Deck MaterialST16 Steel
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Blade Size20"
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Blade Material40MnB Steel
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Blade Bolt SizeM10 35
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Deck Height Positions7
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Deck Height Range1 3/8 - 3 3/4” (3.5 - 9.5 cm)
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3-in-1 FunctionMulch, Side Discharge and Rear Bag
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Wheel Size10" (25.4cm)
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Wheel MaterialPolypropylene/PVC
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Noise Level @ 0' (User)95.4 dB
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Noise Level @ 15' (Nearby)84.9 dB
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Noise Level @ 50' (Long Range)61.83 dB
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Self-PropelledNo
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Vertical StorageYes
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LED HeadlightsNo
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Waterproof Rating (IPX)IPX-4
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Estimated Assembly Time≈15 minutes
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Warranty4-Year Warranty
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Specifications for 80V 4.0Ah Lithium-ion Battery - GBA80400
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Voltage80V
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Amp Hours4Ah
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Weight6 lbs.
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Size3.5" × 5.7" × 8.9"
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Watt Hours288
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Charge Time to 100%from 60 mins
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Diagnostic LED indicatorYes
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Warranty4-Year Warranty
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Specifications for 80V Single Port 4Amp Rapid Charger - GCH8040
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Voltage80V
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Weight3 lbs.
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Size7.7" × 9.3" × 5.1"
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Charge Time to 100%from 30 mins
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Max Output4 AH
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Wall Mount OptionYes
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Diagnostic LED indicatorYes
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Warranty4-Year Warranty
Manuals
Manuals
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Download:
FAQs
FAQs
- 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.
- How should I store and care for my Greenworks battery to ensure the best performance and longest lifespan?
- We want you to get the most out of your tools, and that starts with understanding how to care for your battery. Proper storage and handling not only extend battery life but also ensure your tools are ready to perform when you need them most. A Quick Note on Lithium-Ion Battery Performance All Greenworks batteries use lithium-ion technology, which offers powerful, consistent performance without the memory effect found in older battery types. However, lithium-ion batteries are sensitive to temperature extremes—both heat and cold can affect performance and longevity. That’s why proper storage and care are essential for keeping your battery in peak condition. Best Practices for Battery Storage and Use: Store batteries indoors in a cool, dry location—away from direct sunlight, humidity, or extreme temperatures. This protects internal components and preserves performance. Only connect the battery to the charger when actively charging. When not in use, unplug the charger and keep the battery disconnected. If storing for an extended period, charge the battery fully before putting it away. Check the charge every couple of months. If it drops, recharge it before returning it to storage. This helps maintain battery health over time. Allow the battery to reach a safe operating temperature before use. For snow throwers and cold-weather operation, cold batteries may not power on. Let the battery warm to room temperature indoors before inserting it into the tool. Kindly note: Once the battery is at room temperature and installed, the current generated while the tool is running will help keep the battery warm. As long as the battery starts at room temperature, you should not experience issues even when working in cold outdoor conditions. For other tools/hot weather operation, if the battery has become hot from use or charging, allow it to cool before reinstalling. Indoor storage helps avoid performance issues related to both hot and cold environments and keeps your battery protected year-round.
- Can I leave my battery in the charger after charging it?
- The battery chargers do have auto cut offs to prevent it from over charging. However, we do advise customers to remove the battery from the charger after it has been fully charged and to also unplug the charger from the outlet, as this is good electrical safety practice to do so. This will also help to prevent false defect readings and allows the charger to reset itself each time it’s used to charge a battery.
- Why do batteries cost so much more than the tool?
- The battery is the most important component for a battery-operated unit. Please be assured we price our batteries with the cost of material, manufacturing, and current market pricing in mind. Batteries are the costliest items to manufacture and ship in any kit. Full kits including a tool, battery, and charger are priced affordably so that consumers can begin building that line of tools and move forward purchasing tool-only units. When you purchase batteries on their own, it is more notable the cost that they carry.
- How do I store the battery? Can I leave the battery in the garage or shed?
- When the battery is not in use, we suggest storing it indoors, in a cool dry area - away from direct sunlight. Leave the charger unplugged and the battery disconnected from the charger unless it needs charging. It is recommended to store the battery with a full charge, and if it is being stored for a period where no use is expected, to check on the charge every couple of months. If you notice the charge has dropped, we advise charging the battery back up to full before returning it to its safe storage place. Following these steps will ensure you receive the most out of the battery life.
- My battery is stuck in my tool. How do I get it out?
- 60V/ 80V Products: To remove the battery, push and hold the battery release button. Then, pull the battery pack straight out. In some cases, if the springs underneath have gotten locked down you might have to give a small push to the top of the battery to re-engage them to help the battery pop up. The battery pack fits snugly into the product to prevent accidental dislodging while in use; it may require a strong pull to remove. Before use, be sure that the rails on the battery and product are free of debris that could cause the battery to get stuck. 24V/ 40V Products: To remove the battery, press the latch button on the battery pack down and hold. Pull the battery pack out of the handle. The battery pack fits snugly into the product to prevent accidental dislodging while in use; it may require a strong pull to remove. Before use, be sure that the rails on the battery and product are free of debris that could cause the battery to get stuck.
- How do I check the charge on my battery?
- Press the battery capacity indicator (BCI) button located at the end of the battery. The lights will illuminate according to the battery capacity level. Please note this switch does require a firm direct push using the tip of your finger. If the button is not being fully engaged, the lights will not activate. Please also be advised the lights only stay on for a few seconds and will automatically turn off. Another reason the lights will not power on is if the battery is completely depleted of power and needs to be charged.
- Can I use any Greenworks battery in any Greenworks tool?
- Our batteries are interchangeable with tools that are of the same voltage platform only. The difference between batteries of the same voltage is the ampere-hour (Ah) rating. The higher the ampere-hour (Ah) rating on the battery is the more run time it has to offer.
- Are there certain tools that can’t accept all same voltage batteries?
- There are a few exceptions. • Our 80V 20” snow thrower models 2600402 / 2605202 / 2601302 manufactured prior to September of 2017 can only use 2.0Ah or 2.5Ah battery models. • Our 60V 8.0Ah battery model 2957102 cannot be used in the following tools due to the height: dual-port lawnmowers, pressure washers, or the wet/dry vacuum.
- Do all batteries of the same voltage use the same charger?
- Yes, they do. Each product line has designated charger models that can charge all batteries in that voltage platform, no matter the Ah rating.
- The charger indicates that my battery is fully charged but I was just using it and it depleted. Why isn’t it charging?
- Putting a battery that was just in use onto the charger often results in a false full charge signal. Remove the battery from the charger and allow it to rest in a room temperature area for approximately 10-15 minutes before charging.
- My charger is flashing red when I engage my battery. Why is this happening?
- When the battery is inserted into the charger and the status LED blinks red, remove the battery from the charger for 1 minute, then reinsert. If the status LED blinks green, then the battery is properly charging. If the status LED is still blinking red, remove the battery and unplug the charger for 1 minute. After 1 minute, plug in the charger and reinsert the battery. If the status LED blinks green, then the battery is properly charging. If the status LED is still blinking red, then this likely indicates an issue with the battery or charger and should be taken care of either with our warranty team or by means of replacement.
- My charger has a solid red light on it when I engage my battery. What is happening?
- This typically indicates that the battery is at the wrong temperature to be charged. Allow the battery and charger to rest indoors at room temperature until they are no longer hot/cold and attempt charging again.
- Are your chargers made for 220V or 120V outlets?
- Greenworks chargers sold in the USA and Canada are designed for use on 120V outlets only.
- Looking for a compatible part/accessories for this unit?
- You can find the related parts and accessories on our parts finder by clicking here.
Product Videos
This 80V battery-powered mower offers strong cutting power and quiet operation. Customers praised its lightweight design, long battery life, and ability to handle thick grass. "Cuts through 6 inches without batting an eyelash," one said. However, some reported issues with variable speed fluctuations, grass clipping trails, and weak suction. Battery capacity concerns for larger yards noted.
It does not have the power of a gasoline mower but it doesn’t have the mess either. The suction is weak but it cuts the high grass pretty well. The 4ah battery is on the low end of the needed power. A 8ah or a second battery is needed to complete the yard.
After a life time of gas mowers and struggling to prime and pull the cord I am pleasantly surprised how easy this mower is to use!
I haven’t yet tried the unit. There was an error somewhere and I got the wrong unit. Customer service was pretty good and we’re getting it sorted out to a satisfactory level.
I haven’t yet tried the unit. There was an error somewhere and I got the wrong unit. Customer service was pretty good and we’re getting it sorted out to a satisfactory level.
Bought on special at Costco for 599$ slightly different. Had 2 battery holder in lawnmower. A 2 amp and a 4 amp. After finishing aprox 35-40 minutes of run time I only used a 2 amp battery. Handles well not complicated at all
The Mower is not to bad it will cut grass up to 6 inches without batting an eyelash. I do find that the speed on the mower changes for no reason at all and that most of the time it mows at a reduced speed and then speeds up all of a sudden lasts a couple of minutes and then slows down again. I find this mildly annoying hence the 3 stars
Hello Harlan,
Thank you for taking the time to share your feedback. We’re glad to hear the mower is handling taller grass well and delivering solid cutting performance.
We understand your concern regarding the changes in speed during operation. This mower is designed to automatically adjust performance based on cutting conditions to help maintain efficiency and protect the motor.
If the behaviour you’re experiencing continues or feels inconsistent, we recommend reaching out to our Customer Support team so we can take a closer look and assist further. You can contact us at 1-888-909-6757 or connect with us through live chat.
We appreciate your feedback and the opportunity to improve your experience.
I couldn’t reply to your reply so leaving my reply in another review:
I’m 48 years old, have been cutting grass for about 40 years. I have tried cutting with this mower in absolutely all conditions. Extremely dry, a little on the wet side, cutting very often so that it’s actually short when I cut, and also cutting at medium and tall heights. I always cut at a different pattern than the last time as well as the opposite direction than the last pass. Absolutely nothing helps. It’s a design flaw of the mower. Hopefully you’ve changed this in the newer models. It’s very confusing to me since I can’t find anyone else reviewing the same problem. To be clear, this is not about grass bending over and not getting cut as it sounds like your reply refers to. It is cut grass clippings that build up on the right hand side and doesn’t make it into the bag. I often need to go over the lawn 2 or 3 more times and that still sometimes does not collect them. It’s very unfortunate and is close to pushing me back to a gas powered mower. This is actually the 2nd cordless electric mower that I have owned. The first was a cheap black and decker I bought in 2013. Other than not a great battery, the mower performed way better than the Greeneorks one I bought at a much higher price point. Very frustrating.
Hi Russell. Thank you for your feedback on our 80V 21' Battery Lawn Mower. We truly appreciate your loyalty over the past four years and are sorry to hear about the issue you have experienced. When grass is especially tall, thick, wet, or not maintenance regularly, it can sometimes bend rather than cut cleanly, which may leave a trail behind. This is common and can happen with most lawn mowers under similar conditions. To help prevent the grass bending when mowing, you can mow in alternating directions with each pass, raise the mower deck slightly to improve airflow, mow slower, and ensure your mower blades are sharp and the deck is clean. You should also avoid mowing wet grass, as heavy, wet blades are more likely to bend and tear instead of being cut cleanly. These tips can be very helpful as this issue can occur with all lawn mowers as it may not be the unit itself but the condition of the grass and height. If you have any further questions or need additional assistance, please do not hesitate to contact us directly. You can reach us via chat or give us a call at our toll-free helpline: 1-888-90-WORKS (1-888-909-6757) to speak with a live agent. We hope this information has been helpful!
Decent power on mower but leaves a trail of grass clippings on the right side. Spoke with customer service who thought it was maybe a warranty issue. Brought it to their approved shop and in the end was not a warranty issue. Basically it’s a design flaw. The mower cuts just ok, has a decent amount of power and the battery last a long time. Have had the mower for 4 years but this constant trail of grass clippings is becoming so frustrating that I’m going to need to go to another brand unfortunately. There is potential that the newer edition does not have this problem but I’m not sure I can take the chance since they are very pricey
Hi Russell. Thank you for your feedback on our 80V 21' Battery Lawn Mower. We truly appreciate your loyalty over the past four years and are sorry to hear about the issue you have experienced. When grass is especially tall, thick, wet, or not maintenance regularly, it can sometimes bend rather than cut cleanly, which may leave a trail behind. This is common and can happen with most lawn mowers under similar conditions. To help prevent the grass bending when mowing, you can mow in alternating directions with each pass, raise the mower deck slightly to improve airflow, mow slower, and ensure your mower blades are sharp and the deck is clean. You should also avoid mowing wet grass, as heavy, wet blades are more likely to bend and tear instead of being cut cleanly. These tips can be very helpful as this issue can occur with all lawn mowers as it may not be the unit itself but the condition of the grass and height. If you have any further questions or need additional assistance, please do not hesitate to contact us directly. You can reach us via chat or give us a call at our toll-free helpline: 1-888-90-WORKS (1-888-909-6757) to speak with a live agent. We hope this information has been helpful!
Love it.
Bought on special at Costco for 599$ slightly different. Had 2 battery holder in lawnmower. A 2 amp and a 4 amp. After finishing aprox 35-40 minutes of run time I only used a 2 amp battery. Handles well not complicated at all
This electric lawnmower is Awesome! The 80 volt battery lasts a long time. I have a sizeable front and back lawn and thought I would have to charge the battery between doing the front sides and back. I was wrong the battery has the longevity. What I also like is the easy off-on rear bag. Battery charges quickly and is easy to remove from mower. Very quiet operation. Would definitely buy again.
Works great. Quiet for a mower. Can mow the entire yard on one charge.
I bought this 80v 21 inch push mower as a backup to my cub cadet.I haven’t used the Cub Cadet yet and probably won’t!
It has the power to mow through deep thick grass and does a beautiful job. The battery recharges quickly 35 minutes and has enough amp hours to mow up to about an hour. I love this mower! Much better than my old gasoline powered mower.
This mower is very good easy to operate quiet and cheap to maintain does a very good job of mowing. Couldn't ask for anything more.
The mower comes packaged well in the box and is easy to assemble. I assembled it by myself in about 15 minutes. It is very lightweight and easy to push kind of like pushing a shopping cart. It does a very nice job cutting the grass and I was able to do a third of an acre on a single charge. The mower is very quiet even on high power mode in longer grass. I deducted one star because the battery is a different size than the other 80 volt pro tool batteries that I already have and also because the branding and information stickers on the mower are so thin that they appear wrinkled. When I bought this mower I assumed incorrectly that I would be able to use the batteries from my snowblower and string trimmer and tiller but that is not the case. Even so I like the mower and recommend it.
Greenworks' 80V mower works perfectly for our 1/2 acre yard. It has plenty of power to get through dense areas and is light enough to push up a small incline with ease. The entire yard can be mowed on less than a single charge. Very glad we decided to give an electric mower a try--we'll definitely be looking into Greenworks' other tools.
I bought this because my 10-year-old son wanted to start mowing and our gas-powered mower was too heavy and he couldn't pull the pull-cord hard enough to start it. This mower works great for him (even without the self-propelled) and he's excited to mow. It seems well-made and seems to have enough power to get through some thick grass. I really appreciate it being quieter and very easy to start up and run.
Beautiful!! Lighter than my super-light gas-powered trimming mower. Love the quietness and so do the neighbors. Battery easily handles my 1/4 acre.
I have used this mower three times and I am quite impressed. It is light enough that I didn't need a self propelled. Its very quiet and it cuts evenly. I was worried about the duration of the battery but fully charged I completed the front back and sides of my yard without the battery going dead. This was a wise investment.
I am very pleased with the mower. It has plenty of power and can mow my property without having to recharge the battery in the middle.
Really nice not having to keep fuel on hand and pull to start the mower.The Peo 80v mower does a great job and cuts really clean. Extremely easy operation and the compact storage is a huge plus.
Convenient light weight quiet. Excellent machine really easy to push up hills.
The Pro 80V 21 Brushless Lawn Mower w/ 4.0 Ah Battery fr Grewnworks is amazing! I have been using gas powered lawn mowers my whole life but am now happily switched to electric. This thing has plenty of power thanks!
Powerful yet quiet! Huge improvement over my former gasoline powered mower.
Best battery mower I've owned. Very powerful and long battery life.
