Greenworks 40V 19" Review

Brushless Lawn Mower, 4.0Ah Battery


Final Score

4.2 / 5 from 775 users

Greenworks 40V 19" | Tools Official
Greenworks 40V 19" | Tools Official
Greenworks 40V 19" | Tools Official


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We spent 8.9 hours reading reviews from customers and experts. In summary, here's what users think:

10 reasons to buy

  • The Greenworks 40V 19" mower is noted for its lightweight construction, which makes it easy to maneuver, especially for individuals with physical limitations such as back issues. (37 reviews)

    • “That may bother a big stronger person in utilizing it but for an old lady with back issues it’s the perfect size/weight to maneuver around.”

    • “It's light and quiet and mowing height adjustable with one hand.”

    • “it's lightweight & goes around turns easily”

    • “It’s easier to push because it weighs a lot less”

    • “It works very well and is so quiet and lightweight.”

    • “It's lightweight so even though none of the wheels are power-assisted, my wife could still maneuver it with relative ease.”

    • “this one is even lighter”

    • “I love this mower, it’s lightweight”

    • “It is light, quiet, and easy to push and maneuver.”

    • “Light weight can use one hand swings around corners”

  • The convenience of a battery-powered lawn mower is highlighted, eliminating the need for gas, oil, or spark plug maintenance and avoiding gas fumes. (18 reviews)

    • “You can’t beat battery powered lawn tools for personal use. No gas, oil, or spark plugs to worry about & no gas fumes!”

    • “This mower is so much easier to use. Put in the battery, push a button, lift up the bar and I’m good to go”

    • “Having used corded and gas mowers, this mower is certainly my preferred choice. It’s just so convenient.”

    • “The battery holds up well and keeps the mower running for great efficiency”

    • “So convenient not having to worry about pouring gasoline, yanking anything to start it, or having to plug in a long cord!”

    • “Not having to prime, pull on a cord, change oil / spark plugs or huff fumes was a pleasant experience.”

    • “it’s super easy to start. No more yanking on a cord!”

    • “No more oil changes & gas fill!”

    • “The mower isn’t gas powered which is important to us.”

    • “I love that you don’t have to deal with gasoline or oil, there’s no smoke, and it starts up right away.”

  • The quietness of the mower is appreciated, allowing users to listen to music or enjoy a more peaceful mowing experience. (17 reviews)

    • “It is light and quiet.”

    • “it's quiet, I can still hear my music in my bone conducting headphones”

    • “It works very well and is so quiet and lightweight.”

    • “And its not loud or smelly.”

    • “It is light, quiet, and easy to push and maneuver.”

    • “No noise or gasoline pollution.”

    • “It’s got a beefier sound than the 2017 but still nowhere near as loud as a standard mower.”

    • “It is quiet, super easy to push and turn.”

    • “Mower is quieter than my gas one for sure.”

    • “Mower works great, quiet and mulches grass really well.”

  • Its compactness is appreciated as it allows for easier storage and handling compared to bulkier models. (13 reviews)

    • “it’s more compact than my older mower which I had to trash bc the battery no longer charged”

    • “Stores standing on edge - can't do that with gas mower!”

    • “I have a small terrace and can not fit our lawn tractor up between the stone walls.”

    • “Lightweight and perfect for our size yard.”

    • “I bought this because to trim around the shrubs and the house. My big lawnmower will not fit in there”

    • “It cleans up very easy and is easy to store.”

    • “Plus, it can store in a tight space.”

    • “I have a small area about 15' x 30' to keep the weeds mowed and it works like a charm.”

    • “allows you to store mower upright thus taking up less room”

    • “Great for my little areas”

  • Users have found the assembly process of the Greenworks 40V 19" lawn mower easy and straightforward. (13 reviews)

    • “Mower and handles removed, apparently undamaged, from carton and relatively easily assembled.”

    • “easy to assemble”

    • “Assembly was pretty easy”

    • “It assembled easily”

    • “Great value and a breeze to put together.”

    • “Throw the handle on and charge the battery was the process on getting it out of the box and I have to say I was worried I would be assembling something for hours. It took 60 seconds and I was ready.”

    • “My daughter's boyfriend put it together so I don't know how easy it is to assemble but he said it was no problem and he did it quickly.”

    • “It took just a few minutes to easily put it together.”

    • “Also, was super easy to assemble out of the box”

    • “Practically no assembly”

    • “Mower was easy to assemble, came with all the parts and nothing was damaged.”

  • The ease of starting the mower with a push button is favored over the pull-start mechanism of gas mowers. (11 reviews)

    • “Push button starting beats pull starting an old gas mower any time especially in this late fall season.”

    • “Put in the battery, push a button, lift up the bar and I’m good to go”

    • “EASY to start, which was the main reason I went with an electric, or in this case battery, mower”

    • “it’s super easy to start”

    • “I saw the safety key was already installed and just hold the power button while pushing in on the handle and it goes.”

    • “The start is the best Push and hold a button, press down a lever and release the button. NO PULL CORD!!!!”

    • “Once that was done, it is just a very light touch of a button, pull back the lever, and off you go!”

    • “very easy for him to use with the start button”

    • “Easy push button start.”

    • “it starts at the push of a button!”

    • “First time I didn’t have to struggle or ask someone for help starting my mower!”

  • The battery charges relatively quickly (in about two hours according to one review), and the charger automatically shuts off when the battery is fully charged. (9 reviews)

    • “Battery installed onto charger and was fully charged (did not measure charge time) in approximately two hours.”

    • “I wish the operating time of the battery was longer but it charges quickly so it’s not a huge deal”

    • “Some reviewers complain about the battery charge time, but it clearly says in the ad that it takes up to 120 minutes, and that was the case for the first charge out of the box.”

    • “The battery charged fairly quickly.”

    • “Short charge time on the battery.”

    • “In about an hour it's re-charged enough for me to finish mowing.”

    • “The batter takes about an hour to charge”

    • “Charging exactly as described.”

    • “On the plus side, it fully recharges fairly quickly.”

  • The ability to mulch is mentioned, with clippings being cut finely enough that the use of a grass catcher may not be necessary for some users. (7 reviews)

    • “it mulches so the clippings are very small (if you mow often) so I don't use my grass catcher”

    • “This mower does a good job of mulching so you don't have chunks of dead grass on your lawn.”

    • “It does a great job of mulching although if the grass is really tall it tends to leave a trail of clippings, but no clumps.”

    • “it mulches”

    • “Mower works great, quiet and mulches grass really well.”

    • “Mulches very well”

    • “it cuts and mulches it like slicing thru butter”

  • Customers appreciate the Greenworks 40V 19" mower's single-handle adjustment feature, which makes it convenient to alter the height of the cut with ease. (4 reviews)

    • “Changing the cut level is a breeze because you only have to do it with one handle”

    • “easy to adjust as needed for height of the cut”

    • “It took three cuttings to find the right height”

    • “My yard was overgrown so I put it on the highest setting. And it never hesitated.”

  • LEDs indicate the battery charge level, which is helpful for users to monitor the remaining power. (3 reviews)

    • “Battery had 3/4 charge left when done.”

    • “When it's in a green light flashes until it is charged when it changes to solid green. If it's not in right a red light flashes.”

    • “I tested out 2 hours charge and only one light of four was blinking”

3 reasons not to buy

  • The Greenworks 40V 19" mower's battery runtime is noted by several users to be less than an hour, with some reporting only about 30 minutes of use before needing a recharge. This duration may not be sufficient for larger lawns or for users who prefer to complete their mowing in one go without interruption. (40 reviews)

    • “three cycles of battery run time (also unmeasured) is less than one hour but (probably not much) more than 30 minutes.”

    • “Battery life is 30 minutes.”

    • “The battery lasts as long as the one it replaced - somewhere between 30 and 40 minutes depending on how thick the grass/weeds/brush are.”

    • “the battery is right at 30 minutes unless you are mowing higher grass or putting it under a load”

    • “It will cut about 1500 square feet on a charge it seems.”

    • “The battery lasts about 30 minutes give or take.”

    • “dura entre 30 y 40 min la carga”

    • “My lawn is too big to do with one one battery charge.”

    • “The batter takes about an hour to charge and lasts around 30 minutes.”

  • The cost of a replacement or additional battery is considered high by a user, which may add to the overall expense of using the mower effectively for some consumers. (7 reviews)

    • “The replacement battery is a bit expensive, over $100.”

    • “Another battery would make sense but they’re expensive.”

    • “I would like to purchase a second battery but they cost almost as much as I paid for the mower!”

    • “But the battery on its own cost $125”

    • “Note … the battery cost is about half of the mower costs.”

    • “Batteries are extremely expensive”

    • “They are now sold on an online auction page for in the low hundreds and I have an idea why.”

  • After extensive use until the battery is exhausted, the battery becomes warm to the touch, preventing immediate recharging. This could mean waiting for the battery to cool down before it can be recharged, potentially causing delays. (3 reviews)

    • “at which time battery is too warm (not hot) to be immediately re-charged by the charger.”

    • “Initially advised must allow batteries to "completely" cool, before attempting to recharge.”

    • “i have to wait 30mins for it to cool down before charging”

Bottom Line

The Greenworks 40V 19" is a lightweight, easy-to-use electric mower perfect for those with back issues. No gas or oil needed, it starts with a button and is quiet, making mowing more pleasant. It's compact, easy to assemble, charges fast, and has a mulch feature. The height adjusts with one handle, and LEDs show battery life. However, the battery may last under an hour, replacements are pricey, and it needs cooling before recharging. Ideal for small to mid-sized lawns.


Cutting Width (in)19 inch
FeaturesElectric Start, Mulching, Side Discharge, Bagging
Max Cutting Height3-3/4"
Min Cutting Height1-3/8"
Power SourceBattery
CategoryPush Mowers
Warranty3 Years
Weight48.9 lbs

Video Reviews

Special Features

  • Cordless Power: You can move around your lawn freely without a cord, and the battery lasts long enough to get the job done.
  • Brushless Motor Technology: A special kind of motor that works better, lasts longer, and doesn't make a lot of noise.
  • 19-Inch Durable Steel Deck: A tough cutting area that lets you cover more lawn in less time.
  • Single-Lever Height Adjustment: Easy to change the cutting height with just one move, so you can cut the grass just the way you like it.
  • Mulch or Side Discharge: You can choose to either fertilize your lawn with the grass clippings or throw them to the side.
  • Virtually No Maintenance: You don't have to mess with gas, oil, or engine tune-ups, making your life easier.
  • Instant Start with a Button: Starts up right away with just the push of a button, no yanking a cord required.
  • Portable Power Station with USB: The battery has a USB port, so you can charge your phone or other devices when you're outside.
  • Quiet Operation: It's powerful but doesn't make a lot of noise, so you won't bother the neighbors.
  • 3-Year Warranty: Comes with a 3-year promise to fix or replace it if something goes wrong.


  • Q:

    Is a 40V 5.0AH battery compatible with this model?

  • A:

    The 40V 5.0AH battery from the GreenWorks G-Max 40V line is indeed compatible. To provide precise compatibility information, the model number is required.

  • Q:

    What is the cost of an additional battery?

  • A:

    An additional battery of the same size costs approximately $100. A smaller 2.0 Ah battery is around $60. Customers should search for 'Greenworks battery' to find current prices to make sure its compatible with the G-Max series.

  • Q:

    Why is the 19-inch brushless 4.0ah, 40V model less expensive than the 16-inch 4ah, 40V model?

  • A:

    Pricing may vary due to availability and market factors. It is recommended to check the latest prices when the products are back in stock.

  • Q:

    How can one obtain a replacement blade?

  • A:

    The replacement blade, item R0201862-00, can be found on Amazon or directly through the manufacturer's website.

  • Q:

    Is the 40V 7.0 AH model 29472 battery suitable for use in the lawnmower?

  • A:

    Yes, the battery model 29472 is compatible with the Greenworks 40V lawnmowers.

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