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Extended holiday returns
Returnable until Jan 31, 2026 Learn more
Returnable until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: Returnable until Jan 31, 2026
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Availability:
In Stock.
Arrives
Nov 23 – Nov 24
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Size: 40V 20" (4.0Ah + 2.0Ah)
Features
- CORDLESS 20 LAWN MOWER Get more done, faster, with Greenworks electric lawn mowers. This 40V push mower provides the power you need with up to 45 minutes of run-time on a fully charged 4.0Ah and 2.0Ah battery.Brushless motor : No.No load speed : 6000 RPM
- LIGHTWEIGHT, EASY TO USE a lightweight 20 cutting deck allows for easy maneuvering through small to medium yards (up to 12 acre) more efficiently
- TWIN BLADES - offer better cut quality, superior mulching, and bagging capabilities
- AUTO SWITCH / SMART CUT TECHNOLOGY dual battery ports with auto switch allows for uninterrupted mowing. Smart cut technology adjusts for power or runtime based on the thickness of your grass
- MAINTENANCE FREE This walk behind lawn mower is virtually maintenance free, with no gas, no oil, and no emissions. It starts instantly and is quiet, but delivers gas-like power for your toughest projects
Description
Our Greenworks 40V Dual Blade/Dual Battery Port Mower is perfect for yards up to 1/3 acre with a total battery run-time of approximate 70 minutes. The G-Max 40V is a dual blade mower designed to deliver better mulching, cutting and bagging. The Dual Battery Port automatically switches to the backup battery for a longer run-time, making it easier to get the job done. All this without the hassle of gas, cords or maintenance. One-Battery fits all of our 40 Volt system that includes over 40+ tools to choose from (tools not included). Deck Material: Plastic, Deck Type: Stamped.
Brand: Greenworks
Power Source: Battery Powered
Material: Plastic
Color: 7Pin to 7Way 4Way Adapter
Style: Mower
Item Weight: 42.5 Pounds
Cutting Width: 20 Inches
Operation Mode: Battery
Product Dimensions: 29.2"D x 20.66"W x 19.5"H
Assembly Required: No
Brand: Greenworks
Power Source: Battery Powered
Material: Plastic
Color: 7Pin to 7Way 4Way Adapter
Style: Mower
Item Weight: 42.5 Pounds
Cutting Width: 20 Inches
Operation Mode: Battery
Product Dimensions: 29.2"D x 20.66"W x 19.5"H
Assembly Required: No
UPC: 841821010003
Global Trade Identification Number: 03
Manufacturer: Greenworks
Item Weight: 42.5 pounds
Item model number: 25302
Batteries: 2 Lithium Ion batteries required. (included)
Is Discontinued By Manufacturer: No
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Nov 23 – Nov 24
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 40V 20" (4.0Ah + 2.0Ah)
The media could not be loaded. I ordered this lawn mower in mid-April and wanted to make sure we thoroughly tested it prior to leaving a review. We ordered the twin force 20" deck and the weed eater, but not in the package offered by Amazon. Unfortunately the weed eater uses a different battery and charger. Our previous gas mower ended up hitting a chunk of metal and warping the blade so bad that it couldn't be used. When all the local repair shops wanted $200-300 just to replace the blade, we decided it was time to get a new mower. I did a lot of research online prior to ordering this lawn mower. There are a lot of considerations when purchasing a lawn mower. What cost range am I looking at? What size is my yard? Do I want self-propelled or push? Do I want gas or electric? If I get electric, do I want corded or "wireless" aka battery operated. There are enough options for lawn mowers it makes me feel like I am car shopping instead of looking for lawn equipment. However, after a lot of research I logged into Amazon and saw this was a prime member deal of the day, which made it a better price and it is listed as the #1 best seller in "walk-behind lawn mowers", and with almost 1500 reviews with an average of 4.5 stars it warranted a look and some additional research. Initially, my husband was a little concerned about moving from a more traditional gas mower to an electric based mower (corded or battery operated). There were concerns about the power of the mower, if it would be able to "muscle" through any tough spots or weeds as we have a patch of clover and weeds that keeps coming back despite mowing, weed eating and chemicals. After watching several videos from real users and reading about the use of dual blades instead of a single blade we were intrigued. Another few hours of information about models from this manufacturer and we decided to order and try this mower. It comes with two different "strength" of batteries, however that has not been a concern as our yard size didn't require us to order another extended use battery. The current set up which is default upon ordering works just fine for our lawn and gives us 60-75 minutes of mow time when it's kept up. The time goes down just slightly if the lawn has had excessive growth. The lawn mower has been here and used about once per week minimum since mid-April and we absolutely love it! The batteries charge fairly quick. NOTES: You have to hold down the bar, keep it held down and then push the start or it will not start. The lawn mower will use one battery (light on by that "bay") and once it depletes then it will switch to the other battery, this is normal. There are two smaller 10 inch blades instead of a single blade. The lawn mower is NOT self-propelled, however it is light enough that's not necessary. My husband can push it and mow with one hand. The batteries show how much charge they have left. There are two options for the grass you mow, you can either put on the mulcher and mulch it back into the ground or put on the bag and empty it elsewhere. The mower will use two of the 4AH batteries, which gives a longer mow time up to two hours according to some reviewers, but it works fine with 1 4AH & 1 2 AH. Our batteries usually have charge left and we have a half acre here. The batteries are lithium ion and do not have a "zero point". So you don't have to charge full, let it die, etc. You just charge and go. The height adjustment is really easy to use. The lawn mower weighs about 40 pounds, the site states 42.5 pounds, but it doesn't feel like it at all. The best part? It's SUPER QUIET! I have a lot of 3rd shift workers near and as a previous 3rd shift worker I know that a lawn mower in the middle of my sleep schedule can be horrible. This is VERY quiet operation! I can carry on a conversation in a normal tone without raising my voice while mowing. I've attached a very short video just to show how quiet it really is. The weed eater is actually louder than the lawn mower is. OVERVIEW: This is a quality built lawn mower, which is light weight. It requires a small amount of assembly (no tools) and offers a reliable alternative to gas. The neighbors can barely hear the lawn mower and it gives about an hour or so of charge the way it comes. It's definitely correctly labeled as a best seller. It's a VERY good lawn mower! It has surpassed my expectations for a cordless/battery operated mower, especially for the current price.
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Reviewed in the United States on May 28, 2016 by My Book Fairy
Size: 40V 20" (4.0Ah + 2.0Ah)
I have a lot size of 177 x 65 = 11505 sq ft + 65 * 10 = 650 sq ft between sidewalk and curb of which, about 970 sq ft is grass. I can do all of the front and about 1/3rd of the back before I have to recharge the batteries. Recharge of both batteries takes about 5 hours for me, 3 for the big one and two for the small one. Both batteries are 40 volt, but one is 4 Ah and the other is 2 Ah, so about half the power. I really don't mind this because I need a break about halfway through anyway and it is a good stopping point. Basically, I get the whole front done and all of the cutting in/small spots done in the back, leaving just one big easy square in the middle to finish up after a recharge. The mower is very quiet as others stated and has an automatic high speed mode that kicks in when you are in heavy/high grass. It does an excellent job of cutting and mulching. Actually looks like you bagged even when you mulch, which is very nice. There is some getting used to trimming around things. The sides do a good job of getting to the edges, but the front does not. Remember the front blade is only on the left half and about 6 inches back from the front of the mower so in some spots where you normally do a front to back motion to get into a small space, you will need to trim more. As for using it, as some have stated, it is very quiet and light. It feels more like you are using a toy mower that happens to actually cut the lawn very well. I am thinking of buying an additional charger for $33 to cut the recharge time down to 2 to 3 hours, but an additional 4 Ah battery is a little expensive. At Amazon, it is $123! I had absolutely no problems using it and I have everyone (including my wife) who comes to the house try it out for a minute just to see how quiet and light it is! If I had to have my wife cut the lawn some day, I would feel a lot better about her using this than my old gas mower. The one lever height adjustment is very nice and easy to use and no figuring out front notches vs back notches. No pull start, just press the start button and hold it then pull the operation handle. The mower stops as soon as you let go of the operation handle so that is a nice safety feature. Much safer mower to have the kids use. I now only have one gas powered item left and that is my leaf blower. I just have never found an electric rechargeable that has enough power for blowing wet heavy leaves. I used to use about one gallon of gas per lawn cut, and as someone noted, it costs about 5 cents to charge these batteries. If that is correct I am saving about $3.50 per lawn cut so * 30 weeks per year = about $100 per year. Then add onto that the oil + filter + new blade every year and I would say this thing should save me abot $150 per year! The box says it has a 4 year warranty and I bought the extended warranty as well so I feel very good about the cost overall. My old craftsman was in the Sears repair shop 3 times over 3 years and each time I was without my mower for 1 to 4 weeks! There is zero vibration in the handle of this thing and it never feels like it is about to choke out on heavy damp grass! My only complaint is I wish it had an option for two big batteries for say $50 more and maybe I could do the whole lawn on one charge. Aside from that, it is an excellent mower and investment.
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Reviewed in the United States on April 27, 2014 by Rebecca or Michael Parmley