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Model#: GWKN25302

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Brand new items;Full manufacturer warranty available
Manufacturer inspected, repaired and tested items; CPO 120 day money back guarantee
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New items with possible minor cosmetic damage; CPO 120 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Greenworks 25302 40V G-MAX Li-Ion 20 in. 2-in-1 Twin Force Lawn Mower

  • Greenworks 25302 40V G-MAX Li-Ion 20 in. 2-in-1 Twin Force Lawn Mower
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  • Due to federal regulations, this product can only be shipped within the continental US. Express delivery not available.


Become more efficient when working in your yard with the Greenworks 40V G-Max Lithium-Ion Lawn Tool Series, the gas alternative solution you have been waiting on. This interchangeable battery platform offers all the tools you need to complete your yard work without sacrificing performance or power.
Greenworks 40V G-Max Twin Force Lawn Mower delivers all the power you need to get your yard looking pristine without the hassle of spilling gas or extension cords. The simple electric start makes this easy-to-use, avoid those hard to manage pull gas cords and take that step towards a Zero Carbon Footprint in the yard. This 2-in-1 mower features several high performance features including tool-less conversion from bagging to mulching to make your job faster, and is designed with the new Twin Force dual blade cutting action for enhanced cutting performance. The 5-position cutting height adjustment allows you to switch between a range of 7/8 in. to 2-3/4 in, guaranteeing a nice even cut for all grass types. Greenworks ergonomic design offers a variety of user comfort features from easy adjustable handle, overmolded grip, 7 in. rear wheels and 6 in. front wheels for better control and easy fold down handles for convenient storage. Quiet and easy to use, this mower provides the reliable performance and dependability you need to get your yard work done quickly and efficiently.
  • 20 in. cutting deck offers a balance of maneuverability and cutting capacity making it ideal for mid-sized areas
  • Innovative Smart Cut technology adjust for power or runtime based on the thickness of your grass
  • Dual blades offer better cut quality, superior mulching and bagging capabilities
  • 5 position single lever height adjuster allows for a cutting height range of 1-3/4 in. to 3-3/8 in.
  • 2-in-1 feature offer versatile use with mulching and rear bagging capabilities
  • Hard top rear bag indicates when the bag is full and needs to be emptied
  • 10 in. rear wheels and 7 in. front wheels make it easy to maneuver through any range of terrain
  • Compatible with Greenworks G-MAX 40V Li-Ion System that powers more than 25 tools
  • 40V G-Max Cordless Lithium-Ion 20 in. 2-in-1 Twin Force Lawn Mower - 25302
  • (2) 40V (2Ah and 4Ah) Lithium-Ion Batteries
  • Charger
  • Owner's Manual


Series: G-MAX
Cordless: Yes
Weight: 42.5 lbs.
Batteries Included: 2
Battery Type: Li-Ion
Cutting Height (Max.): 3-5/8 in.
Cutting Height (Min.): 1-5/8 in.
Cutting Height Settings: 5
Cutting Path: 20 in.
Deck Material: ABS Polymer
Discharge Settings: Rear
Drive System: Manual
Mulching Capability: Yes
Recharge Time (Full Capacity): 3 hrs.
Voltage: 40V
Wheel Size (Front): 8 in.
Wheel Size (Rear): 10 in.



4.6 / 5.0
41 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (33)
No, I would not recommend this to a friend (1)
Lightweight (33)
Powerful (1)
A Mower from Heaven
This machine works like a dream. Battery system is flawless... I was mowing with one's 47 pounds... I cannot praise your company enough for such an outstanding product.

July 20, 2017
Great mower!
Great mower! It is light weight making it easy to push. It does a good job mulching and quieter then a gas mower. No gasoline or oil to mess with. I can mow my 5000 square foot lawn with 4 Ah battery and 1/4 charge left. No side discharge cover to caught on fences.
June 12, 2017
My new Model 25302
A month ago I purchased a 25302 mower from Amazon. Received it safe and sound.
Looked through the paperwork. Got it setup up, batteries charged eazpeezy.
We've used it several times and here are our observations. The 4.0 Ah and 2.0 Ah batteries supplied are sufficient to trim and mow our yard. As the season advanced it is taking more battery to do the job.
The height adjustment is somewhat inaccurate. The mechanism says 3" inch but it is more like 3.5"
The bag full indicator is very prone to clogging and then not working.
It does not have the suction power of our old gas mower. It does not pick up loose yard debris as well.
It would be a bit easier to empty the bag if there was an additional handle on the bottom rear of the bag.
The owners manual is brief and somewhat vague. Appears written by the designer not a user.
Having said that we like the mower. It is quiet, easy to push and does a good job cutting.
May 23, 2017
Used 1st time
Runs great love the electric no gas or oil or pull cord. Thought it would be a bit lighter but no problem there.
April 2, 2017
Eco-friendly hi tech
This is my third battery powered lawn mower in a 20-year period. Each mower has been better than the last. The Greenworks Twin Force is a leap forward in technology and easy of use. Truly 21st century innovation. The lithium ion battery technology is an amazing aspect of great push lawn mower design. This mower complements my current and expanding suite of Greenworks yard tools that includes a leaf blower, a string trimmer, a hedge trimmer and a pole saw. Keep up the great work Greenworks!!! Combined with my solar panels on the roof and my electric vehicle, we are going green!
February 25, 2017
Best Product!
CPO has outstanding Greenworks products that are unbelievable. Lightweight, durable, consistent, easy to use, and meets all my criteria.
November 8, 2016
Great for small lawns but does not cut very low
I have a small lawn and don't even use up the larger of the 2 batteries. It's surprisingly light compared to my 7 year old Black and Decker electric mower. The 2-blade system does cut the grass into smaller pieces. The staggered configuration (left blade more forward than the right) will change the pattern you mow edges. The smart power setting dials back the rpm and noise, making it seem underpowered. But in reality, I have not found it to be a problem. The one problem I do have is that even the lowest setting, the grass is not cut as short as I am used to doing. But it's probably healthier for the grass than otherwise. So no real complaints from me.
October 12, 2016
Yes, I would recommend this to a friend
Review of Greenworks 25302 Cordless Electric Lawn mower
This is the second Greenworks Model No. 25302 cordless electric mower I bought this season...the first was for a friend who bought a small house in the city ..the electric mower worked out well for her...I was very impressed with the first 25302 so I bought a second one for my suburban home as well...the 25302 is easy starting, easy to maneuver, is lightweight and does a good job cutting...I use my 25302 for mowing and trimming our lawn.
August 17, 2016
Yes, I would recommend this to a friend
Greenworks Model No. 25302 Cordless Electric Lawn Mower
I purchased the first Model 25302 cordless lawn mower for a friend who had just purchase a new house in the city ...the house in the city has a small lawn, approx. 60 ft by 110 ft.....she wanted an electric mower...the 25302 is an excellent choice...the 25302 is easy to push and steer, is lightweight in comparison to my gasoline - powered lawn mowers, and is quiet and easy starting, and thus far has done a good job cutting the lawn...
I am very impressed with the Greenworks Model 25302 cordless lawn mower and I have ordered a second mower from Greenworks for will be an excellent mower for mowing and trimming on my property.
August 3, 2016
Yes, I would recommend this to a friend
So much nicer than Gas
My clunky gas mower quit working and I planned to replace it with a self-propelled gas model as the old one was just too much work to use on our hot summer days. After looking around and reading reviews on battery operated models, I decided to take a chance. The warranty gave me the peace of mind to do so. I am so glad I did.

It is light weight enough that pushing it is not a difficult task, it starts so easily- no more pulling the rope, and I don't have to fool around with gas.

My son has started mowing the lawn on his own (without being reminded!!!), and he also prefers this mower to all others he has used. We have only had this mower for a short time. I hope it holds up for years. I found the best price by purchasing it directly from CPO since shipping was included and tax did not apply.
July 15, 2016

Questions & Answers

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Browse 26 questions Browse 26 questions and 40 answers
I have a battery that reads green (fully charged) in the charger. The battery reads blinking red in the mower and mower won't start. Why do two Greenworks products read the battery differently?
Teresa on Aug 18, 2016
BEST ANSWER: Please contact Greenworks direct for tech support. You can reach them at 888-909-6757
I have a lawn care business. I'm thinking about "going green". Will this mower be able to hold up doing multiple yards a day, 5 days a week?
Michael on Jul 27, 2016
I would not recommend this mower for that worklaod...
Here in Rochester NY there is a company called CARBON CUTTERS...You may
want to network with them regarding the equipment they use...
Take care...
Can the mower be stored vertically?
Curious mower on Jul 13, 2016
BEST ANSWER: I don't see why not. There is no oil in it to leak out. You would have to rig some kind of mount for it as there isn't a hanging hole or anything.
What can I do if it won't start? Batteries are fully charged and the center connecter fully engaged. I push the button and pull the handle - nothing.
Gary on Jun 4, 2016
BEST ANSWER: Just a couple of thoughts in reply to your question. First, you say that the batteries are fully engaged. If you did not hear a positive "click" when you inserted each battery, they are not properly installed. If you can pull either battery out of its slide receptacle without pressing the grey release lever, it's not locked in place. Slide the battery most of the way out of its track, then slide it back toward the connector with enough authority so that you hear the locking mechanism click into place.
To start the mower, push and hold the safety button down while you pull the handle. When the motors start, release the button.
Hope this helps.
I am considering purchasing the 40V G-MAX Twin Force Mower, however I noticed a claim that the Twin Blades may leave portions of uncut grass (between the blades). Is this common to those who have this mower? This would surely change my decision to purchase this product. THX
Ice on May 8, 2016
BEST ANSWER: The mower cuts evenly and does an excellent job mulching cut grass, even when the grass is tall and thick.
Sent from my iPhone
Where is the serial number located on the mower?
Larry on Aug 20, 2016
BEST ANSWER: On the hard plastic flap that cover the top opening of the grass catcher, on the upper right hand side when reading the text. You will see "Model Number," and under that "G-MAX," and under that "S/N."
Sent from my Verizon, Samsung Galaxy smartphone
I'm trying to remove the blades for sharpening. One came off easily but the other nut appears to be stuck. Nothing will budge it. Any suggestions?
Tree top on Jul 19, 2016
BEST ANSWER: No I do not...Purchased recently and have used twice...
? For you...Has the cutting been uniform...???...
Good luck...
Does the lawnmower come with the rear bag?
Clark on Apr 4, 2015
BEST ANSWER: Yes, the lawnmower comes with a rear discharge bag.
Can I operate my 25302 g-max twin force mower with just one battery, or does it require two batteries inserted to operate?
Greymouser on Sep 27, 2014
BEST ANSWER: no problem with 1 battery, while 1 is charging to bad the manual does not explain it better.
Where can you get blades for the 40V G-Max Twin Force Mower?
John on Jul 14, 2016
BEST ANSWER: CPO retails both batteries, which are models 29472 and 29462
Where can you get blades for the 40V G-Max Twin Force Mower?
John on Jul 14, 2016
BEST ANSWER: Please contact Greenworks direct. You can reach them at 888-909-6757
Is the motor brushless?
M on May 13, 2016
BEST ANSWER: This Lawn Mower is not Brushless.
Are there any guarantees or warrantees?
bill on Mar 17, 2016
BEST ANSWER: NEW GreenWorks products are protected against all defects under normal use for a period of (4) four years
Greenworks 25302 40V G-MAX rear discharge, does it mean that if you don't use the bag as grass is cut that it lands on your feet?
Pam on Jul 20, 2015
BEST ANSWER: There is a cover that closes down so it will not be shot out towards you, but yes, the clippings would fall to the rear of the mower
What is the mow time with 2 fully charged 40V G-Max batteries?
SundayDriver on Jun 7, 2015
BEST ANSWER: This mower has a run time of 1 hour 20 minutes with two fully charged batteries.
Can a second battery be purchased?? 70 minutes is not enough time for front & back lawns
Shirl on May 14, 2015
BEST ANSWER: Yes, batteries are available for purchase
so I have asked this same question about two weeks ago, with no reply. I have thus far have NO issues with my lawn mower until last week. when I went to start it up, it started but soon there after stopped. I attempted this start numerous times, again with the same results. (starting the exact same way each time and after starting, mower just stops and have to attempt restart) when I check the mower and area near both batteries, I notice two red flashing lights above where the battery housing is.
my question again: what do the flashing red light above the battery housing mean for my mower? I cannot locate an answer in the manual or by my physical check. can anyone help?
MM on Apr 12, 2015
BEST ANSWER: Please contact Greenworks directly at 888-909-6757 for technical assistance with your mower
The web page contradicts itself regarding the cutting height range of this mower. Please clarify the minimum and maximum height of cut. Thank you.
Will on Mar 7, 2015
BEST ANSWER: This unit features 5 position single lever height adjuster allows for a cutting height range of 1-3/8" to 3-3/8".
I am interested in your g-max:
With the reconditioned unit, you receive two batteries, One is 4.0 Ah and one is 2.0 Ah G-Max batteries.
The new mower includes 2 - 4.0 Ah G-Max batteries but question an answer to a question that states you get 2 4.0 Ah batteries with a new twin force lawn mower from greenworks
please clearify...
BEST ANSWER: The Twin Force model # 25302 gets two 4 ah 40V G-Max batteries. We have a Reconditioned lawnmower (model # 25223-RC) that comes with one 2 ah and one 4 ah 40V G-Max battery. The Recon lawnmower is not the new twin force.
Nobody ever indicate where the green works products are made. Please, tell me, where is your top of the line electric cordless mower made? Are ANY of them out there made in AMERICA!!!!!!
j-bear on Dec 24, 2014
BEST ANSWER: The mower is made in China
Can I use two 4h batteries.. instead of a 2h and 4h??
Slater on Jun 27, 2014
BEST ANSWER: Yes, two 4ah batteries can be used
How long does charge last for this mower?
Spike on Apr 17, 2014
BEST ANSWER: The run time at a full charge is approximately 70 minutes.
How do I fill out the warranty on the GreenWorks mower by computer? S/N GWR3551272 - MODEL # 25302
Alex on Mar 26, 2014
BEST ANSWER: Here is the link to the product registration:
How do I fill out the warranty on the GreenWorks mower by computer? S/N GWR3551272 - MODEL # 25302
Alex on Mar 26, 2014
BEST ANSWER: Here is the link to the product registration:
The new version says "(2) 40V G-Max Lithium-Ion Batteries" and the reconditioned says "40V 4.0 Ah Lithium-Ion Battery,
40V 2.0 Ah Lithium-Ion Battery"

Are the batteries for the new unit the same as the reconitioned - 1 4.0 Ah and 1 2.0 Ah

Or does the new version come with 2 4.0 Ah?
Frank on Mar 2, 2014
BEST ANSWER: With the reconditioned unit, you receive two batteries, One is 4.0 Ah and one is 2.0 Ah G-Max batteries.
The new mower includes 2 - 4.0 Ah G-Max batteries.
How do I fold the handles on a Greenworks 25302 40V G-MAX Cordless Lithium-Ion 20-in 2-in-1 Twin Force Lawn Mower
Green-T on Jan 29, 2014
BEST ANSWER: The information you are requesting can be found on page 12 of the manual. Here is a link to the manual:


Greenworks Warranty


When looking for lawn tools, we know you’re thinking about quality. You’re looking for something that will get the job done and get you back to your weekend. That’s why Greenworks backs tools with a four-year warranty (1 year on Pressure Washers) we know our products will perform at the highest level and always be reliable.


Greenworks products are protected against all defects under normal use for a period of four years (90 days for commercial use) from the shipping date. Pressure Washers carry a 1 year warranty.

Reconditioned GreenWorks products are protected against all defects under normal use for a period of 30 Days from the shipping date.

Greenworks can opt to repair, replace or issue a refund for products that are determined to be defective, or that have been damaged during shipping. Proof of purchase is required. Replacement of products or parts subject to normal wear and tear is the responsibility of the customer. If Greenworks accepts a return under Warranty, you can return the defective or damaged product only after you call and receive a Return Authorization from Greenworks. You also will receive a refund for your original shipping charges, and GreenWorks will arrange and pay for your return shipping charges. Lithium-ion batteries carry a two-year warranty against defects in workmanship and materials. Sealed Lead Acid batteries carry a one-year warranty against defects in workmanship and materials. Batteries must be charged in accordance with the operator’s manuals directions and regulations in order to be valid. See owners manual for warranty details.