Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
popular
Tel06c 4K Views
Oct 7, 2026 4:46 PM

Greenworks 40V 25" Brushless Dual Blade Self-Propelled Lawn Mower (2) 4.0 ah batteries and dual-port charger + Free S/H $382.5

$383

$800

52% off
Greenworks Tools
Get Deal at Retailer

Why are you downvoting this deal?

Good Deal?
9Comments
Save
Share
Deal Details
Use coupon code SDNEWSLETTER15 to get price

https://www.greenworkstools.com/p...2TZ83f7FNE
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Use coupon code SDNEWSLETTER15 to get price

https://www.greenworkstools.com/p...2TZ83f7FNE

Community Voting

Deal Score
+7
Good Deal
Bad Deal

Why are you downvoting this deal?

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

9 Comments

Sign up for a Slickdeals account to remove this ad.

Oct 7, 2026 6:15 PM
189 Comments
Joined May 2023
ElatedPear129Oct 7, 2026 6:15 PM
189 Comments
Their 40v brushless struggles with 20" blade A LOT overheating batteries. There is no way it can do 25" any better. 16" is probably the best GW I've ever had as of power delivery, before making a mistake upgrading to 20". You need to go to 60v or 80v for 20"+
1
Oct 7, 2026 9:47 PM
192 Comments
Joined Jan 2019
Philip212Oct 7, 2026 9:47 PM
192 Comments
Quote from ElatedPear129 View quoted comment :
Their 40v brushless struggles with 20" blade A LOT overheating batteries. There is no way it can do 25" any better. 16" is probably the best GW I've ever had as of power delivery, before making a mistake upgrading to 20". You need to go to 60v or 80v for 20"+
Is the 20" blade a duel battery? Looks like this one can accept both batteries at once, which should meaningfully reduce the amperage. Also this is a duel blade, not a singular 25" blade so that should not be as much draw.
Pro
Expert
This user is an Expert in Home & Home Improvement
Oct 7, 2026 10:39 PM
5K Comments
Joined Jun 2005
Cobalt_Blue_FFOct 7, 2026 10:39 PM
Pro
Expert
This user is an Expert in Home & Home Improvement
5K Comments
Quote from ElatedPear129 View quoted comment :
Their 40v brushless struggles with 20" blade A LOT overheating batteries. There is no way it can do 25" any better. 16" is probably the best GW I've ever had as of power delivery, before making a mistake upgrading to 20". You need to go to 60v or 80v for 20"+
IMO, the 21" has been rock solid (that is what I have used for a few years now, ~.5 acres). I started with a set of 4ah batteries, and it had no issues. I now use 8ah batteries, and can do the whole thing with pretty much one battery.

If you are using smaller than 4ah, that might be part of the issue, but their 4ah or higher batteries can handle my 21" with no issues , and I suspect the 25" is just as good.
Pro
Oct 8, 2026 5:00 PM
833 Comments
Joined Jul 2007
M1sterio
Pro
Oct 8, 2026 5:00 PM
833 Comments
FYI- The 60v was around this price like 5yrs ago. https://slickdeals.net/f/15205972-greenworks-lawn-mowers-20-off-21-pro-60v-brushless-self-propelled-lawn-mower-w-2x-4ah-batteries-free-shipping-383-2?src=SiteSearch I did buy at that time and the metal corroded, the middle fell through. I'm in central FL, kept it in the garage and didn't use it after raining or in the mornings. Now I'm debating if I should buy another one because I got two good batteries and if 5 years of use is good enough.
1
Pro
Oct 8, 2026 5:14 PM
833 Comments
Joined Jul 2007
M1sterio
Pro
Oct 8, 2026 5:14 PM
833 Comments
Oct 10, 2026 7:35 PM
1.2K Comments
Joined Dec 2019
golfreakOct 10, 2026 7:35 PM
1.2K Comments
Quote from ElatedPear129 View quoted comment :
Their 40v brushless struggles with 20" blade A LOT overheating batteries. There is no way it can do 25" any better. 16" is probably the best GW I've ever had as of power delivery, before making a mistake upgrading to 20". You need to go to 60v or 80v for 20"+
This isn't one big 25 inch blade, it's 2 smaller blades that gives it the 25 inch cut.
Oct 10, 2026 7:54 PM
1.2K Comments
Joined Dec 2019
golfreakOct 10, 2026 7:54 PM
1.2K Comments
I can probably give you the best summary on this 40v 25 inch.
GW makes the 60v and 80v version so I was surprised they had a 40v version.
I did a full search for 40v 25 inch revies on YT and found very little.
I have a .44 acres housing complex and a 21 inch GW 60v and wanting something wider to cut down my mowing grass time.
I've ruled out a riding because I don't have the storage and I have too many fruit tress around the yard.

My biggest concern is is the 40v is powerful enough and if 2x 4ah is enough to cut the front or the back one at a time.
Remembered 40v x 4 = 160wh x 2. Where is 60v x 4 =240wh which is significantly more capacity.
Luckily I remembered I have 2 40v spares from a long time ago for extra capacity if they still works.
So instead of buying from GW and bought 1 from Walmart for the same price with no discount since I wanted to test it out and return easier if I didn't like it.
I got the mower this morning and put it right to work.
My spare 40v charged just fine and started the mower no problem.
I went to cut the back yard and I can honestly say it is a huge thumbs up.
The cuts were fine and it is noticeably lighter than my GW 21 inch mower.
What I gather from the net is that the dual blades will sometimes leave strings of grass in the middle between the 2 blades but I didn't see any from the small of grass I cut in the back.
The 2 40v 4ah will probably be just fine for the back yard and will be close for the front as it is bigger.
I will cut the front later this week and give an update.
Just got comparison, my 21 inch will go through a little more than 1 60v 5ah in the back yard and 2(or more) 60v 5ah if the grass is thick in the front yard.
Remembered that even if both mowers has the same run time, the 25v will cut more because it's wider.

Since this is a SD site after all, I did just purchased through GW for $383 + tax.
It ended up being about $80 cheaper than Walmart with the 15% off.
I will end up using this brand new unit to return it at Walmart since they have the exact SKU.
Last edited by golfreak October 10, 2026 at 01:22 PM.

Sign up for a Slickdeals account to remove this ad.

Oct 10, 2026 7:56 PM
1.2K Comments
Joined Dec 2019
golfreakOct 10, 2026 7:56 PM
1.2K Comments
Quote from Philip212 View quoted comment :
Is the 20" blade a duel battery? Looks like this one can accept both batteries at once, which should meaningfully reduce the amperage. Also this is a duel blade, not a singular 25" blade so that should not be as much draw.
Both batteries aren't running the same time. The machine uses one at a time. Once one run out, the other one kicks in.
Oct 12, 2026 12:54 AM
5 Comments
Joined Aug 2011
ls1021Oct 12, 2026 12:54 AM
5 Comments
Quote from ElatedPear129 View quoted comment :
Their 40v brushless struggles with 20" blade A LOT overheating batteries. There is no way it can do 25" any better. 16" is probably the best GW I've ever had as of power delivery, before making a mistake upgrading to 20". You need to go to 60v or 80v for 20"+
you are the real owner of this mower. it's true, greenworks batteries are kind of scam, over heated, short life and over priced replacement. stay away.

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!