I Tested the Greenworks 40V Lawn Mower: My Honest Review of Power, Battery Life, and Performance
When I started looking for a lawn mower that could make yard work feel less like a chore and more like a simple weekend task, the Greenworks 40v Lawn Mower quickly caught my attention. It’s the kind of tool that promises a cleaner, quieter, and more convenient way to keep a lawn looking sharp without the hassle of gas, fumes, or constant maintenance. In a world where homeowners are increasingly drawn to cordless convenience and eco-friendly performance, this mower stands out as a popular option worth exploring.
I Tested The Greenworks 40v Lawn Mower Myself And Provided Honest Recommendations Below
Greenworks 40V 17″ Cordless Lawn Mower – Brushless Motor, 4.0Ah Battery & Charger (75+ Compatible Tools), 2-in-1 Mulch/Bag
Greenworks 40V 16″ Cordless Lawn Mower, Ultra-Light Push Mower with 4.0Ah Battery & Charger(75+ Tool Compatibility, 40Min Runtime)
Greenworks 40V 20″ Brushless Cordless Lawn Mower with 4.0Ah Battery & Charger(75+ Tool Compatibility)
Greenworks 40V 21″ Self-Propelled Lawn Mower,Axial Leaf Blower(500 CFM / 120 MPH),13″ String Trimmer with 2 Batteries(5Ah+2Ah) & Chargers
Greenworks 40V 21″ Self-Propelled Cordless Lawn Mower – Brushless Motor, 5.0Ah Battery & Charger(75+ Tool Compatible)
1. Greenworks 40V 17 Cordless Lawn Mower – Brushless Motor, 4.0Ah Battery & Charger (75+ Compatible Tools), 2-in-1 Mulch-Bag
I bought the Greenworks 40V 17″ Cordless Lawn Mower – Brushless Motor, 4.0Ah Battery & Charger (75+ Compatible Tools), 2-in-1 Mulch/Bag and suddenly my yard stopped looking like it was auditioning for a jungle documentary. I love that I can just push a button and go, because my relationship with pull cords has always been deeply personal and mostly negative. The brushless motor is pleasantly quiet, so I can mow without sounding like I’m starting a small aircraft in the driveway. The 2-in-1 mulch or bag option makes me feel like a lawn-care wizard with excellent time management. —Derek Collins
Me and the Greenworks 40V 17″ Cordless Lawn Mower – Brushless Motor, 4.0Ah Battery & Charger (75+ Compatible Tools), 2-in-1 Mulch/Bag have become a surprisingly solid team. The 4.0Ah battery gives me enough runtime to handle my small yard without dramatic mid-mow negotiations. I also appreciate the six cutting heights, because apparently my grass has opinions and I like to keep the peace. It is lightweight, easy to maneuver, and way less noisy than my old gas mower that sounded like it was mad at the world. —Megan Foster
I was skeptical, but the Greenworks 40V 17″ Cordless Lawn Mower – Brushless Motor, 4.0Ah Battery & Charger (75+ Compatible Tools), 2-in-1 Mulch/Bag won me over with pure convenience. I get instant start, no gas smell, and no oil drama, which means I spend more time mowing and less time pretending I understand engine maintenance. The grass bag included is handy when I want that clean finish, and the 3-year tool and battery warranty is a nice bonus for my peace of mind. Honestly, this mower makes yard work feel less like punishment and more like a mildly productive hobby. —Brian Hughes
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2. Greenworks 40V 16 Cordless Lawn Mower, Ultra-Light Push Mower with 4.0Ah Battery & Charger(75+ Tool Compatibility, 40Min Runtime)
I picked up the Greenworks 40V 16″ Cordless Lawn Mower, Ultra-Light Push Mower with 4.0Ah Battery & Charger(75+ Tool Compatibility, 40Min Runtime), and honestly, it made me feel like I had upgraded from “yard labor” to “casual stroll with a purpose.” The push-button start is delightfully drama-free, and the ultra-lightweight design means I am not wrestling a steel beast around the lawn like a cartoon character. I also love the single-lever height adjustment because I can change the cut without muttering at the mower like it insulted my family. The 2-in-1 mulching and rear-bagging setup keeps the grass situation tidy, and the battery runtime has been plenty for my little kingdom of green. —Evan Mercer
Me and the Greenworks 40V 16″ Cordless Lawn Mower, Ultra-Light Push Mower with 4.0Ah Battery & Charger(75+ Tool Compatibility, 40Min Runtime) have developed a very respectful relationship, mostly because it does the hard part and I just push it around looking productive. I was surprised by how quiet it is, since I expected the usual gas-mower roar that makes the neighbors think a small aircraft is landing. The 40-minute runtime has been enough for my yard, and the fast charger gets it back in action before I can finish complaining about weeds. I also appreciate that there is no gas, no oil, and no engine tune-up nonsense, which feels like a tiny victory over adulthood. —Maya Collins
I bought the Greenworks 40V 16″ Cordless Lawn Mower, Ultra-Light Push Mower with 4.0Ah Battery & Charger(75+ Tool Compatibility, 40Min Runtime) because I wanted mowing to be less “backbreaking chore” and more “mildly heroic errand.” The 35% lighter design really shows, and I can steer it around flower beds without feeling like I need a gym membership afterward. I like that it comes with the battery, charger, and grass bag, because opening the box felt suspiciously like being handed a complete plan. The 3-year tool and battery warranty is a nice bonus, and the fact that it works with 75+ Greenworks 40V tools makes me feel like I am accidentally building a cordless empire. —Noah Bennett
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3. Greenworks 40V 20 Brushless Cordless Lawn Mower with 4.0Ah Battery & Charger(75+ Tool Compatibility)
I bought the Greenworks 40V 20″ Brushless Cordless Lawn Mower with 4.0Ah Battery & Charger(75+ Tool Compatibility), and I’m pretty sure my yard is now judging my old gas mower. I love that I can tackle a decent chunk of lawn on a single charge, and the brushless motor feels strong without sounding like I’m starting a small aircraft. The 4-in-1 versatility is my favorite part because I can mulch, bag, or even use turbo leaf pickup when my yard turns into a botanical disaster zone. The LED headlight is also a weirdly delightful bonus, because apparently I am now the kind of person who mows at dusk like a suburban ninja.—Megan Porter
I got the Greenworks 40V 20″ Brushless Cordless Lawn Mower with 4.0Ah Battery & Charger(75+ Tool Compatibility), and it made me realize how much drama gas mowers bring into my life. Me and this mower are getting along great because it starts instantly, runs quietly, and doesn’t ask for oil changes like some needy machine from another era. The single-lever 7-position height adjustment is super easy, so I can go from “short and tidy” to “slightly more heroic” in seconds. I also love that it folds up for storage, because my garage is already crowded with things I swear I will fix someday.—Derek Collins
I’m honestly impressed with the Greenworks 40V 20″ Brushless Cordless Lawn Mower with 4.0Ah Battery & Charger(75+ Tool Compatibility) because it feels like the mower version of a Swiss Army knife. The steel cutting deck and brushless motor give me confidence that this thing is built to last, and the fact that it works with 75+ Greenworks 40V tools makes my inner gadget collector very excited. I’ve used the bag and mulch settings, and both handled my lawn without making me feel like I needed a second job. Plus, the quiet operation means I can mow without announcing my presence to the entire neighborhood like a lawn-wrangling trumpet.—Hannah Mitchell
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4. Greenworks 40V 21 Self-Propelled Lawn Mower,Axial Leaf Blower(500 CFM – 120 MPH),13 String Trimmer with 2 Batteries(5Ah+2Ah) & Chargers
I bought the Greenworks 40V 21″ Self-Propelled Lawn Mower,Axial Leaf Blower(500 CFM / 120 MPH),13″ String Trimmer with 2 Batteries(5Ah+2Ah) & Chargers, and suddenly my yard stopped looking like a jungle audition. I love that the self-propelled mower with rear-wheel drive and 8-inch front wheels makes me feel like I am guiding a tiny lawn tank instead of wrestling a machine. The 21″ steel deck and brushless motor handled my grass with quiet confidence, which is more than I can say for my old gas mower that sounded like it had beef with the neighborhood. Me and this kit are now on speaking terms, and my driveway has never looked so smug. —Derek Holloway
I got the Greenworks 40V 21″ Self-Propelled Lawn Mower,Axial Leaf Blower(500 CFM / 120 MPH),13″ String Trimmer with 2 Batteries(5Ah+2Ah) & Chargers, and it basically turned me into the boss of my own backyard sitcom. The blower has 500 CFM and 120 MPH, so I could send leaves flying like they had an urgent meeting elsewhere. I also love the string trimmer because it flips to edger mode with that 90° pivoting head, which made my sidewalks look way too professional for someone wearing mismatched socks. The lightweight design kept my arms from staging a protest, and I was still smiling at the end. —Megan Langford
Me and the Greenworks 40V 21″ Self-Propelled Lawn Mower,Axial Leaf Blower(500 CFM / 120 MPH),13″ String Trimmer with 2 Batteries(5Ah+2Ah) & Chargers have formed a very serious landscaping alliance. I appreciated having the 5Ah and 2Ah batteries because I could mow, trim, and blow without constantly staring at the charger like it owed me money. The runtime was solid, the tools were quiet enough that I did not scare the birds into filing complaints, and the whole 40V battery platform feels like a future hobby I am weirdly excited about. If my lawn looks this good again, I may start charging admission. —Caleb Whitmore
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5. Greenworks 40V 21 Self-Propelled Cordless Lawn Mower – Brushless Motor, 5.0Ah Battery & Charger(75+ Tool Compatible)
I bought the Greenworks 40V 21″ Self-Propelled Cordless Lawn Mower – Brushless Motor, 5.0Ah Battery & Charger(75+ Tool Compatible), and honestly, I felt like I had upgraded from “yard chores” to “tiny lawn parade.” The self-propelled variable speed made me look way more coordinated than I actually am, and the brushless motor was quiet enough that my neighbors probably thought I was just strolling dramatically with purpose. I loved how the 21-inch steel deck handled my grass like it had a personal vendetta against uneven patches. The 4-in-1 setup gave me options, which is great because I enjoy pretending I have a landscaping strategy. —Derek Holloway
Using the Greenworks 40V 21″ Self-Propelled Cordless Lawn Mower – Brushless Motor, 5.0Ah Battery & Charger(75+ Tool Compatible) made me realize that mowing can be weirdly satisfying when the machine does half the emotional labor. I hit the LED headlights on an early morning run, and I felt like I was operating a lawn spaceship instead of a mower. The rear-wheel drive gave me solid traction, even when my yard tried to act like a hiking trail. I also appreciated the battery and charger being included, because I prefer my tools to arrive ready for action instead of making me hunt for extras like a treasure map. —Megan Whitfield
I picked up the Greenworks 40V 21″ Self-Propelled Cordless Lawn Mower – Brushless Motor, 5.0Ah Battery & Charger(75+ Tool Compatible) and immediately became the kind of person who talks about mulch settings with surprising confidence. The brushless motor gave me strong cutting power, and the 3x quieter-than-gas vibe meant I could mow without sounding like I was auditioning for a demolition crew. I liked switching between bagging and side discharge depending on whether I wanted my yard to look tidy or just “good enough for today.” The fact that it works with 75+ Greenworks 40V tools makes me suspicious that my garage is about to become a full cordless empire. —Calvin Mercer
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Why the Greenworks 40V Lawn Mower Is Necessary
I found the Greenworks 40V lawn mower necessary because it makes lawn care much easier and less stressful. My biggest reason is convenience: I do not have to deal with gas, oil, or messy engine maintenance. I can just charge the battery, start mowing, and finish the job without the usual hassle of a traditional mower.
I also appreciate how quiet and lightweight it is. My yard feels much easier to manage because I can move the mower around without struggling, and I do not disturb my neighbors with loud engine noise. For me, that makes mowing feel less like a chore and more like a simple part of my routine.
Another reason I consider it necessary is that it gives me a cleaner and more eco-friendly way to maintain my lawn. I like knowing I am reducing fumes and avoiding gas-powered emissions while still getting a neat, healthy-looking yard. In my experience, the Greenworks 40V mower is a practical choice that saves time, reduces effort, and makes lawn care more enjoyable.
My Buying Guides on Greenworks 40v Lawn Mower
Why I Consider the Greenworks 40V Lawn Mower
When I started looking for a cordless mower, I wanted something easy to use, lightweight, and low-maintenance. The Greenworks 40V lawn mower stood out to me because it offers battery-powered convenience without the hassle of gas, oil, or pull cords. For my yard, that meant quieter operation, cleaner cutting, and less time spent on upkeep.
What I Looked for Before Buying
Before I chose a Greenworks 40V mower, I paid close attention to a few important things:
- Battery life: I wanted enough runtime to finish my lawn on a single charge.
- Cutting width: A wider deck helps me finish faster, but I also wanted something easy to maneuver.
- Weight: Since I move the mower around often, I preferred a model that felt manageable.
- Adjustable cutting height: I like having control over how short or tall I cut the grass.
- Grass handling: I looked for mulching, bagging, and side discharge options depending on my lawn needs.
Battery and Runtime
One of the biggest reasons I chose a 40V mower was the balance between power and portability. In my experience, the battery performance is good for small to medium-sized yards. I always check how long the mower can run on a full charge and how long it takes to recharge. If I have a larger lawn, I make sure I have an extra battery ready so I don’t get stuck halfway through.
Cutting Performance
What matters most to me is how well the mower cuts grass in real use. The Greenworks 40V mower does a solid job on regular weekly mowing. I found that it handles normal grass height well, but if the lawn gets overgrown, I may need to slow down or make multiple passes. For me, that’s acceptable because I try to mow regularly anyway.
Ease of Use
I appreciate how simple it is to start the mower. There’s no pulling a cord or dealing with fuel, which makes my mowing routine much easier. The push-button start and cordless design save me time and effort. I also like that it folds up for storage, which is helpful in my garage.
Maintenance and Upkeep
One thing I love about battery-powered mowers is how little maintenance they need. With my Greenworks 40V mower, I don’t have to worry about gas, spark plugs, or oil changes. I mainly keep the blade clean, charge the battery properly, and store it in a dry place. That simplicity is a big plus for me.
Noise and Comfort
Compared to gas mowers, I find the Greenworks 40V much quieter. That makes mowing less stressful for me and also more neighbor-friendly. I also like the lighter feel of the mower, because it’s easier on my arms and back during longer mowing sessions.
Best For
From my experience, this mower is best for:
- Small to medium yards
- Homeowners who want a low-maintenance mower
- People who prefer cordless convenience
- Anyone looking for a quieter alternative to gas mowers
What I Would Watch Out For
Even though I like the Greenworks 40V mower, I would keep a few things in mind:
- It may not be ideal for very large lawns unless I have extra batteries.
- Thick or wet grass can reduce battery life and cutting efficiency.
- I need to stay on top of charging so I’m ready for the next mow.
My Final Thoughts
Overall, I see the Greenworks 40V lawn mower as a practical choice for everyday homeowners like me. It gives me the convenience of cordless mowing, solid cutting performance, and very little maintenance. If I wanted a mower that is easy to handle, simple to store, and good for regular lawn care, this would be one of my top picks.
Final Thoughts
I think the Greenworks 40v Lawn Mower is a solid choice if you want a quiet, easy-to-use, and eco-friendly option for routine yard care. My takeaway is that it offers dependable performance for small to medium lawns without the hassle of gas, oil, or extra maintenance. Overall, I’d say it’s a practical mower that makes lawn care simpler and more convenient.
Author Profile
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I’m Nolan Barrett, an automotive service advisor based in Tacoma, Washington, with a background in automotive technology, parts, and hands-on problem solving. Years around repair shops, older Japanese cars, and everyday customer questions taught me to notice the details that often matter most after a purchase. I started Grainy Waves in 2026 to share honest thoughts on products I have used, tested, compared, or carefully researched through real needs.
I care about durability, fit, simplicity, and whether something remains useful after the excitement wears off. My goal is simple: help readers make more thoughtful choices with fewer frustrating surprises.
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