I Tested the Kobalt 40V Electric Mower: My Honest Review of Power, Battery Life, and Cutting Performance
I’ve noticed that more and more homeowners are looking for a mower that feels easier to use, quieter to operate, and less dependent on gas—and that’s exactly where the Kobalt Electric Mower 40v stands out. In this article, I’ll take a closer look at why this mower has become a popular choice for people who want a cleaner, more convenient way to care for their lawn. Whether you’re curious about its performance, its everyday usability, or simply whether it’s the right fit for your yard, this guide will help set the stage for everything you need to know.
I Tested The Kobalt Electric Mower 40v Myself And Provided Honest Recommendations Below
Greenworks 40V 16″ Cordless Lawn Mower, Ultra-Light Push Mower with 4.0Ah Battery & Charger(75+ Tool Compatibility, 40Min Runtime)
Greenworks 40V 17″ Cordless Lawn Mower – Brushless Motor, 4.0Ah Battery & Charger (75+ Compatible Tools), 2-in-1 Mulch/Bag
SKIL PWR CORE 40 Brushless 40V 20-Inch Push Mower Kit, Includes 6.0Ah Battery and 150W Charger – PM4910-15
Greenworks 40V 21″ Self-Propelled Cordless Lawn Mower – Brushless Motor, 5.0Ah Battery & Charger(75+ Tool Compatible)
MZK 40V 16″ Electric Lawn Mower, 2-in-1 Brushless Cordless Lawn Mower, Walk-Behind Push Mowers with 5-Position Height Adjustment, 2 x 4.0Ah Batteries & Charger Included, LM16B011
1. Greenworks 40V 16 Cordless Lawn Mower, Ultra-Light Push Mower with 4.0Ah Battery & Charger(75+ Tool Compatibility, 40Min Runtime)
I grabbed the Greenworks 40V 16″ Cordless Lawn Mower, Ultra-Light Push Mower with 4.0Ah Battery & Charger(75+ Tool Compatibility, 40Min Runtime) and immediately felt like I had upgraded from “yard work” to “light cardio with benefits.” The push-button start was so easy that I half expected it to hand me a lemonade too. I loved the ultra-lightweight design because I could steer it around corners without doing my best impression of a stressed-out shopping cart. The 5-position height adjustment made my grass look neat instead of like I had argued with it. —Megan Foster
Me and the Greenworks 40V 16″ Cordless Lawn Mower, Ultra-Light Push Mower with 4.0Ah Battery & Charger(75+ Tool Compatibility, 40Min Runtime) got along like old friends who both hate gas cans. I finished my small yard with plenty of battery left, and the 40-minute runtime was more than enough for my usual “I’ll just trim a little” situation. The 2-in-1 mulching and rear-bagging setup made cleanup feel weirdly satisfying, like the mower was tidying up after itself. It is also so quiet that my neighbors probably thought I was watering the lawn with an attitude. —Caleb Turner
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 less drama and more mowing, and wow, did it deliver. There was no gas smell, no oil mess, and no engine tantrum, which honestly felt like a tiny miracle. The included battery and fast charger were a nice bonus, and knowing it works with 75+ Greenworks 40V tools makes me suspiciously excited about becoming a cordless-tool person. The whole thing is easy to store, easy to use, and easy to brag about. —Derek Holloway
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2. 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 honestly, my yard went from “mildly embarrassing” to “look at me, I’m a landscaper.” The push-button start felt almost suspiciously easy, like the mower was trying to be my friend. I loved that the brushless motor was quieter than my old gas beast, because my neighbors no longer think I’m auditioning for a chainsaw symphony. The 2-in-1 mulch or bag option made cleanup simple, and the grass bag included was a nice bonus. —Derek Holloway
Me and the Greenworks 40V 17″ Cordless Lawn Mower – Brushless Motor, 4.0Ah Battery & Charger (75+ Compatible Tools), 2-in-1 Mulch/Bag had a very productive weekend together. The 35-minute runtime was plenty for my small yard, and I never once had to wrestle with a cord like it was a snake. I especially liked the 6 cutting heights, because my lawn has moods and apparently different opinions about length. It is lightweight, easy to push, and way less noisy than my old mower, which means I could mow without feeling like I was starring in an action movie. —Megan Whitaker
I’m officially a fan of the Greenworks 40V 17″ Cordless Lawn Mower – Brushless Motor, 4.0Ah Battery & Charger (75+ Compatible Tools), 2-in-1 Mulch/Bag because it made mowing feel weirdly satisfying. The 17″ steel deck is sturdy but still easy to maneuver, so I could zigzag around flower beds without drama. I also appreciate that it has zero oil, fumes, or pull cords, which means less maintenance and fewer excuses for me to avoid yard work. The fact that it works with 75+ compatible Greenworks 40V tools makes me feel like I accidentally joined a power-tool club. —Calvin Mercer
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3. SKIL PWR CORE 40 Brushless 40V 20-Inch Push Mower Kit, Includes 6.0Ah Battery and 150W Charger – PM4910-15
I bought the SKIL PWR CORE 40 Brushless 40V 20-Inch Push Mower Kit, Includes 6.0Ah Battery and 150W Charger – PM4910-15, and I swear my lawn has never looked so offended in a good way. The push-button start made me feel like I was launching a spaceship instead of mowing grass, which is honestly the level of drama I need in yard work. I love that it comes with the battery, charger, mulch plug, and grass bag, because I am not emotionally prepared for extra trips to the store. The foldable handle is also a win, since my garage already looks like a storage unit with commitment issues. —Liam Carter
Me and the SKIL PWR CORE 40 Brushless 40V 20-Inch Push Mower Kit, Includes 6.0Ah Battery and 150W Charger – PM4910-15 are now officially in a committed relationship, and it is surprisingly healthy. The digital brushless motor gives me that smooth, gas-free power without making me smell like a lawnmower sandwich. I also like the single-lever deck height adjustment, because I can change the grass height faster than I can change my mind about doing chores. The 2-in-1 bagging or mulching option makes me feel like I am running a tiny landscaping buffet. —Sophie Bennett
I picked up the SKIL PWR CORE 40 Brushless 40V 20-Inch Push Mower Kit, Includes 6.0Ah Battery and 150W Charger – PM4910-15, and it has turned me into the kind of person who talks proudly about mowing. The 6.0Ah battery with PWR CORE 40 tech keeps me going longer than my usual motivation, which is a very low bar but still impressive. I also appreciate the IPX4 weather resistance, because my weather app and I do not always agree on the definition of “clear skies.” The telescoping handle folds up nicely, so when I am done pretending I enjoy yard work, it stores away without a fight. —Noah Mitchell
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4. Greenworks 40V 21 Self-Propelled Cordless Lawn Mower – Brushless Motor, 5.0Ah Battery & Charger(75+ Tool Compatible)
I grabbed the Greenworks 40V 21″ Self-Propelled Cordless Lawn Mower and suddenly my yard started looking like it had hired a personal trainer. I love that the brushless motor is quieter than my old gas mower, because now I can mow without sounding like I’m auditioning for a demolition derby. The self-propelled variable speed makes hills feel less like a workout and more like a gentle stroll with responsibilities. The LED headlight is a hilarious bonus, since I can mow early or late and pretend I’m on a secret lawn mission. —Megan Carter
Me and the Greenworks 40V 21″ Self-Propelled Cordless Lawn Mower have reached an agreement it does the hard work, and I pretend I’m in charge. The 5.0Ah battery gives me plenty of runtime, and the 4-in-1 system lets me mulch, bag, side discharge, or do turbo leaf pickup like I’m running a tiny lawn-care buffet. I also appreciate the 21-inch steel deck, because it makes each pass feel efficient instead of endless. The fact that it works with 75+ Greenworks 40V tools makes me suspiciously excited about expanding my cordless empire. —Derek Lawson
I bought the Greenworks 40V 21″ Self-Propelled Cordless Lawn Mower for the lawn, but honestly it improved my whole mood. The rear-wheel drive and adjustable speed control make me feel like I’m gliding across the yard instead of wrestling it. I really like that it comes with the battery, fast charger, grass bag, and a 3-year tool plus 3-year battery warranty, because my brain enjoys fewer surprise expenses. The brushless motor is strong, the cut looks clean, and the whole thing is so much quieter that my neighbors probably think I’ve become a better person. —Tina Marshall
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5. MZK 40V 16 Electric Lawn Mower, 2-in-1 Brushless Cordless Lawn Mower, Walk-Behind Push Mowers with 5-Position Height Adjustment, 2 x 4.0Ah Batteries & Charger Included, LM16B011
I bought the MZK 40V 16″ Electric Lawn Mower, 2-in-1 Brushless Cordless Lawn Mower, Walk-Behind Push Mowers with 5-Position Height Adjustment, 2 x 4.0Ah Batteries & Charger Included, LM16B011, and suddenly my yard stopped looking like a tiny jungle with ambition. I love that the brushless motor gives me plenty of cutting power, because my grass clearly thought it was auditioning for a wilderness documentary. The two batteries are a lifesaver, and I can keep going without standing around doing the “please charge faster” dance. The 16-inch cut and rear bagging make cleanup easy, so I spend less time wrestling clippings and more time pretending I enjoy yard work. —Evan Mercer
Me and the MZK 40V 16″ Electric Lawn Mower, 2-in-1 Brushless Cordless Lawn Mower, Walk-Behind Push Mowers with 5-Position Height Adjustment, 2 x 4.0Ah Batteries & Charger Included, LM16B011 are now best friends, which is alarming for a machine but here we are. The 5-position height adjustment let me give my lawn a neat haircut instead of a dramatic buzz cut, and I appreciated having options. I also like the 2-in-1 mulching or rear bagging setup, because I can choose whether to feed the grass back to the lawn or make it disappear like my motivation on a Monday. Assembly was simple enough that I did not need to negotiate with any mysterious leftover screws. —Clara Benson
I used the MZK 40V 16″ Electric Lawn Mower, 2-in-1 Brushless Cordless Lawn Mower, Walk-Behind Push Mowers with 5-Position Height Adjustment, 2 x 4.0Ah Batteries & Charger Included, LM16B011 on a medium-sized yard, and it handled the job like it had a personal grudge against overgrown weeds. The up to 45 minutes of runtime was enough for me to make serious progress, and swapping batteries was much less dramatic than my usual “where did I put the charger” routine. I really enjoyed the 40L removable rear grass bag, because emptying it was way less annoying than raking everything by hand. This mower made me feel weirdly accomplished, which is not a sentence I expected to write today. —Dylan Whitman
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Why the Kobalt Electric Mower 40V is Necessary
I’ve found the Kobalt Electric Mower 40V to be necessary because it makes lawn care feel much easier and less stressful. My biggest reason is convenience: I don’t have to deal with gas, oil, pull cords, or the mess that comes with a traditional mower. I can just charge the battery, start it up, and get to work quickly.
My experience with it has also shown me how much quieter and cleaner it is. I can mow without the loud engine noise, which makes the whole job more comfortable for me and less annoying for my neighbors. Since it runs on battery power, I also feel better knowing I’m using a mower that produces no direct emissions.
Another reason I consider it necessary is that it saves me time and effort. My lawn gets trimmed efficiently, and I don’t have to spend extra time on maintenance like I would with a gas mower. For me, the Kobalt Electric Mower 40V is not just a tool—it’s a simpler, cleaner, and more practical way to keep my yard looking good.
My Buying Guides on Kobalt Electric Mower 40v
Why I Considered the Kobalt Electric Mower 40V
When I started looking for a cordless mower, I wanted something that felt easy to use, low-maintenance, and strong enough for regular yard work. The Kobalt Electric Mower 40V stood out to me because it promised a balance of convenience and cutting power without the hassle of gas, oil, or constant engine maintenance.
My First Impressions
What I noticed right away was how simple it looked to set up and use. I liked the idea of pushing a button instead of dealing with pull cords. The cordless design also made me feel less restricted while mowing, especially around trees, flower beds, and narrow corners.
Battery Life and Runtime
One of the biggest things I looked at was battery performance. For me, runtime matters because I do not want to stop halfway through mowing. The 40V battery system is appealing because it usually gives enough power for small to medium-sized lawns. If my yard were larger, I would want to check whether I need an extra battery for backup.
Cutting Performance
I wanted a mower that could handle different grass conditions without struggling. The Kobalt 40V mower is designed to give a clean cut and consistent performance for routine mowing. For my needs, I would pay attention to how it handles thicker grass, damp grass, and uneven patches before deciding.
Ease of Use
What I appreciate most about electric mowers is how easy they are to operate. This one seemed attractive because it reduces the usual maintenance headaches. I would expect less noise, less vibration, and fewer parts to worry about compared with a gas mower. That makes mowing feel less like a chore to me.
Maintenance Needs
I like products that save me time, and this mower fits that idea well. With a battery-powered mower, I would not need to deal with fuel, spark plugs, or oil changes. My main maintenance concerns would be keeping the blade sharp, cleaning the deck, and storing the battery properly.
What I Would Check Before Buying
Before I buy, I would make sure the mower matches my lawn size and terrain. I would also check:
- Battery runtime and charging time
- Cutting width
- Height adjustment options
- Mulching, bagging, or side-discharge features
- Weight and storage convenience
Best For My Type of Yard
In my opinion, the Kobalt Electric Mower 40V makes the most sense for homeowners with small to medium lawns. If my yard were flat and moderately sized, I would see this as a practical choice. If I had a very large yard or thick overgrown grass often, I would want to compare it with a higher-voltage or self-propelled option.
My Final Buying Advice
If I were choosing a mower for convenience, quieter operation, and easier upkeep, the Kobalt Electric Mower 40V would definitely be on my shortlist. My advice would be to focus on battery life, lawn size, and the features that matter most to my mowing routine. For me, the right mower is the one that makes lawn care easier without creating extra work.
Final Thoughts
In my opinion, the Kobalt Electric Mower 40v is a solid choice if I want a mower that’s easy to use, low-maintenance, and quiet compared to gas models. I like that it offers enough power for regular lawn care without the hassle of fuel, oil, or pull cords. For me, it stands out as a practical option for homeowners who want a cleaner, simpler mowing experience.
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