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expiredphoinix | Staff posted Aug 11, 2025 07:15 AM
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expiredphoinix | Staff posted Aug 11, 2025 07:15 AM

Greenworks 20" 40V Twin Blade Cordless Lawn Mower w/ 4Ah & 2Ah Battery & Charger

+ Free Shipping

$245

$380

35% off
Amazon
22 Comments 13,660 Views
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Deal Details
Amazon has Greenworks 20" 40V Twin Blade Cordless Lawn Mower w/ 4Ah & 2Ah Battery & Charger for $245. Shipping is free.

Thanks to Deal Hunter phoinix for finding this deal.

Features:
  • 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
  • A lightweight 20" cutting deck allows for easy maneuvering through small to medium yards (up to ½ acre) more efficiently
  • Twin Blades offer better cut quality, superior mulching, and bagging capabilities
  • 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

Editor's Notes

Written by powerfuldoppler | Staff
  • About this deal:
    • Please see original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • About this product:
    • Rating of 4.1 from over 6900 customer reviews.
  • About this store:

Original Post

Written by phoinix | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Amazon has Greenworks 20" 40V Twin Blade Cordless Lawn Mower w/ 4Ah & 2Ah Battery & Charger for $245. Shipping is free.

Thanks to Deal Hunter phoinix for finding this deal.

Features:
  • 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
  • A lightweight 20" cutting deck allows for easy maneuvering through small to medium yards (up to ½ acre) more efficiently
  • Twin Blades offer better cut quality, superior mulching, and bagging capabilities
  • 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

Editor's Notes

Written by powerfuldoppler | Staff
  • About this deal:
    • Please see original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • About this product:
    • Rating of 4.1 from over 6900 customer reviews.
  • About this store:

Original Post

Written by phoinix | Staff

Community Voting

Deal Score
+24
Good Deal
Visit Amazon

Price Intelligence

Model: Greenworks 40-volt 20-in Cordless Push 4 Ah | 25302

Deal History 

Sort: Most Recent
Post Date Sold By Sale Price Activity
09/02/25Amazon$245 popular
2
07/23/25Amazon$266
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06/21/21Amazon$279
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Top Comments

GreyHamster9252
4 Posts
10 Reputation
Put some lipstick on it. It's a lawn mower, not your girlfriend. Lol
hitman007
1551 Posts
279 Reputation
Yes I have this unit little challenging to use on steep hills as wheels are not powered. It has place for two batteries so technically you can increase the run time by using two 4ah batteries instead of 4 and 2 it comes with. Twin blade cutting performance is very very good.

21 Comments

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Aug 11, 2025 05:39 PM
2,393 Posts
Joined Jul 2016
HermanMunchtherAug 11, 2025 05:39 PM
2,393 Posts
4.1 rating is concerning. I consider anything below 4.5 not great.
Last edited by HermanMunchther August 11, 2025 at 10:42 AM.
2
Aug 11, 2025 05:55 PM
1,631 Posts
Joined Nov 2017

This comment has been rated as unhelpful by Slickdeals users.

Aug 11, 2025 06:01 PM
4 Posts
Joined Aug 2025
GreyHamster9252Aug 11, 2025 06:01 PM
4 Posts

Our community has rated this post as helpful. If you agree, why not thank GreyHamster9252

Quote from FookNoe :
Only 40 mins and it's a push mower. Ew! The thing looks ugly too.
Put some lipstick on it. It's a lawn mower, not your girlfriend. Lol
1
10
Aug 11, 2025 06:26 PM
22 Posts
Joined Jan 2010
djturner15Aug 11, 2025 06:26 PM
22 Posts
Anybody have this model?
Aug 11, 2025 06:58 PM
1,551 Posts
Joined Jan 2007
hitman007Aug 11, 2025 06:58 PM
1,551 Posts

Our community has rated this post as helpful. If you agree, why not thank hitman007

Quote from djturner15 :
Anybody have this model?
Yes I have this unit little challenging to use on steep hills as wheels are not powered. It has place for two batteries so technically you can increase the run time by using two 4ah batteries instead of 4 and 2 it comes with. Twin blade cutting performance is very very good.
2
Aug 11, 2025 09:02 PM
207 Posts
Joined Oct 2017
sarissaAug 11, 2025 09:02 PM
207 Posts
Bought this 6 years ago for 239 after taxes. We don't mow a ton but it's still going strong enough. A bit of rust on the handles where the sections rub against each other when folding it up. The two batteries have been useful as we've added a few other 40v tools and have been able to buy tool only versions. It's not a mowing monster but has handled what we've thrown at it. My difficulties have been with letting weeds get too tall and the mower just pushing it down instead of cutting. I can't blame the mower for that.

I'd suggest thinking of this as buying into the 40v system if this is the first tool purchase. It's worked out for us but it doesn't mean I don't envy the 80v tools (but I wouldn't want those higher prices given my workloads).

It's been maintenance free for the whole 6 years. And that has been wonderful.
Aug 11, 2025 10:22 PM
7 Posts
Joined Feb 2006
bsjdAug 11, 2025 10:22 PM
7 Posts
I've owned this mower for about 10 years. Was going strong, though lately it is making sounds that make me think it is dying. That said, mowing our lawn in Iowa for 10 years is no small feat. Batteries have lasted well (store and charge them inside, they do much better). For the price it is a good mower. Might move up to an Ego when this one dies (have an Ego snowblower and a couple Ego batteries), but I don't regret owning this one.

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Aug 12, 2025 03:14 AM
55 Posts
Joined Sep 2013
RussyptAug 12, 2025 03:14 AM
55 Posts
Quote from djturner15 :
Anybody have this model?
Yeah I've had it like 10 years. Surprised it is still on sale. I use it as a backup mower for an Ego aluminum deck one. The 4aH and 2aH batteries are still good after a decade, that's the craziest thing to me. It can miss spots between the blades if you aren't good about keeping it flat with the grass. It doesn't use both batteries at the same time. It just uses one then switches to the other when the first battery is dead. That's not a bad thing because after a short job you just charge the one that actually got drained. This is a good choice for someone with a small lawn. A light push mower that is easy to push into nooks and pull it out. That's a lot more difficult with my Ego mowers.
Aug 12, 2025 03:41 AM
56 Posts
Joined May 2013
grntprknsAug 12, 2025 03:41 AM
56 Posts
I bought this mower when I bought my house 8 years ago. It is still going strong without any issues. I still have the same 4 and 2Ah batteries, but bought an additional 4Ah battery because I bought in to the 40V series: Weed whip, two chainsaws, a pole saw, hedge trimmer, leaf blower, and a leaf vacuum. All have been stellar except for the leaf vacuum (which actually converts into another leaf blower, which is solid).

When you first start to use it, it seems like the batteries don't last very long. But you have to adjust the height of the mower appropriately, make sure the grass doesn't get too long (I mow every week), don't walk too fast or you'll miss grass, and don't cut when the grass is wet. I have 1/3 acres and as long as I stay on top of mowing, both 4Ah batteries will cut it, plus power remaining to weed whip the curb line and driveway, and blow the grass off the driveway (about 1.5-2 hours with bagging grass). Charge the drained battery while you are using the second battery.

It's not the same as using a gas mower. It's not meant to be. But it's perfect for what it is. It's light, quiet, cuts decently, durable, and you can use the batteries for other things like Ryobi.
Aug 12, 2025 04:40 AM
264 Posts
Joined Oct 2008
interruptAug 12, 2025 04:40 AM
264 Posts
I've had this mower for 10 years. Like others have said, it doesn't handle super tall grass and wet grass too well. I've had it stop several times on me on those occasions. other than that, the original batteries and mower still function well after all these years.
Aug 12, 2025 05:31 AM
1,794 Posts
Joined Aug 2006
anvilsvsAug 12, 2025 05:31 AM
1,794 Posts
"Frequently returned item". You may be able to get a deal on a returned one.
Aug 12, 2025 05:46 AM
345 Posts
Joined Jun 2007
TamdrikAug 12, 2025 05:46 AM
345 Posts
I've got the Kobalt version that I think is basically a rebadge (same deck, twin 40V batteries, 20" twin blades). The plastic deck means it's very light for a push mower, and it still seems quite sturdy. If I were to do it again, I'd probably opt for a higher-voltage model (like Ego's 56V or an 80V), since it can struggle with wet, heavy grass. That said, I don't regret the purchase-- way nicer than a gas mower with the push-button start, low noise, and lack of fumes. You may want another battery if you've got a large lawn, though.
Aug 12, 2025 11:54 AM
144 Posts
Joined Mar 2011
CorringtonAug 12, 2025 11:54 AM
144 Posts
I've had it for about ten years now. It's been a workhorse. Never failed to get the job done. We moved to larger acreage so use a zero-turn now (PiTA!!) but I still use this for touchups the zero can't reach. Just get an extra battery or two depending on your lot size.
Aug 12, 2025 12:50 PM
303 Posts
Joined May 2009
PostmanPatAug 12, 2025 12:50 PM
303 Posts
Echoing other comments, I've had this mower for about 7 years, I have other 40V stuff so I have extra batteries and can complete my 1/2 acre with two 4AH batteries. The mower is light-weight so not having the powered wheels is not an issue and makes the mower easy to maneuver around obstacles. Mine came with a mulching insert for grass-cycling which does work but leaves clumps of grass but honestly not sure any other mower I've had did much better. The twin blade design seems to provide a good cut, I sharpen my blades a couple of times a year and that makes a big difference, I don't usually cut the grass if its wet so the potential lack of power others mention has never been an issue. I've got a few 80V tools and I'd like to upgrade to the 25" twin motor 80V version just because the wider cut would speed up the process but until the 40V breaks down I can't really justify it and it doesn't look seem like that's happening any time soon.

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Aug 12, 2025 02:44 PM
51 Posts
Joined Dec 2019
FantasticFaucet1448Aug 12, 2025 02:44 PM
51 Posts
I'm starting a movement to thumbs-down (not a good product) all of the Greenworks crap that Slickdeals is pushing on us. Anybody else want to join me?
4

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