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expired Posted by thebeaz • Aug 6, 2023
expired Posted by thebeaz • Aug 6, 2023

21" Greenworks Pro 80V Self-Propelled Lawn Mower w/ 5Ah Battery

+ Free Shipping

$434

$599

27% off
Amazon
51 Comments 24,149 Views
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Deal Details
Amazon has 21" Greenworks Pro 80V Self-Propelled Lawn Mower w/ 5Ah Battery (MO80L510) on sale for $434. Shipping is free.

Thanks to Community Member thebeaz for finding this deal.

Features:
  • 3-in-1 Design - For easy mulching, bagging, or side discharge
  • Brushless Motor - 2x more torque, more power, longer runtimes, quiet operation, and extended motor life
  • Senses grass and auto-adapts power for the perfect cut
  • Push Button Start

Editor's Notes

Written by SlickDealio | Staff
  • About this Offer:
    • This is $66 lower (13% savings) than the next lowest price from a reputable merchant with prices starting from $499.99.
  • About this Product:
    • This is rated 4.4 out of 5 stars based on over 170 ratings at Amazon.
  • About this Store:
  • Refer to the forum thread for additional deal discussion.

No Longer Available:

Walmart has 21" Greenworks Pro 80V Self-Propelled Lawn Mower w/ 5Ah Battery (MO80L510) on sale for $434Shipping is free.

Original Post

Written by thebeaz
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has 21" Greenworks Pro 80V Self-Propelled Lawn Mower w/ 5Ah Battery (MO80L510) on sale for $434. Shipping is free.

Thanks to Community Member thebeaz for finding this deal.

Features:
  • 3-in-1 Design - For easy mulching, bagging, or side discharge
  • Brushless Motor - 2x more torque, more power, longer runtimes, quiet operation, and extended motor life
  • Senses grass and auto-adapts power for the perfect cut
  • Push Button Start

Editor's Notes

Written by SlickDealio | Staff
  • About this Offer:
    • This is $66 lower (13% savings) than the next lowest price from a reputable merchant with prices starting from $499.99.
  • About this Product:
    • This is rated 4.4 out of 5 stars based on over 170 ratings at Amazon.
  • About this Store:
  • Refer to the forum thread for additional deal discussion.

No Longer Available:

Walmart has 21" Greenworks Pro 80V Self-Propelled Lawn Mower w/ 5Ah Battery (MO80L510) on sale for $434Shipping is free.

Original Post

Written by thebeaz

Community Voting

Deal Score
+22
Good Deal
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Price Intelligence

Model: Greenworks 80-Volt 21-in Self-propelled Battery Mower (Battery and Charger Included) | MO80L510

Deal History 

Sale Price
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Current Prices

Sort: Lowest to Highest | Last Updated 6/18/2025, 12:07 PM
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Walmart$448
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Top Comments

This is an older model. The newer model is sold by Costco (and GW online). I've owned both, and both work well. The newer model has a "turbo" switch on the controls, allowing you to set the higher speed without relying on the auto sensing feature. The new model also has a slightly different handle that folds more easily, and also has two battery ports that switch from the depleted battery to the fresh one automatically.

I bought the newer model from Costco about a year ago for $499 with two 4Ah batteries. The GW tools and batteries sold by Costco come with an 8 year warranty...4 from GW and additional 4 from Costco. If you see the new model from Costco on sale again (Reg $649) for $499, it's a better deal....2ea 4Ah batteries, plus the 8 year warranty on both the tool and batteries.
One more thing. It ships in mulch mode and that's the way I left it so no emptying the bag over and over. Don't even have to attach the grass catcher. I raised the cutting height from 1 to 3 (out of 7 positions). It also has an auto-sensing technology that speeds up the blade when needed (thick, tall, wet grass), then slows it back down.

I swear I don't work for Greenworks. Just more than impressed with what they've done here. You can see the before and after of what I found when I got here and what it looks like now.

50 Comments

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Aug 6, 2023
1,217 Posts
Joined Jun 2009
Aug 6, 2023
dru500a
Aug 6, 2023
1,217 Posts
Looks like a great deal. I got it with the 4 and 2ah batteries for about $90 more and am very happy with it.
Aug 6, 2023
947 Posts
Joined Sep 2007
Aug 6, 2023
hiperco
Aug 6, 2023
947 Posts
Note that the Amazon version is the PRO version. It's my understanding that the non-pro batteries are not compatible. Quite silly actually. EDIT: Correction, I was thinking about the 82V "commercial" mowers, this 80V should be compatible with other 80V greenworks stuff.
Last edited by hiperco August 6, 2023 at 02:41 PM.
3
Original Poster
Aug 6, 2023
124 Posts
Joined Dec 2005
Aug 6, 2023
thebeaz
Original Poster
Aug 6, 2023
124 Posts
Quote from hiperco :
Note that the Amazon version is the PRO version. It's my understanding that the non-pro batteries are not compatible. Quite silly actually.
Just checked the box and the mower and both say PRO version. Also checked the same model number (at Walmart) on the Greenworks website and it shows PRO on the front of the mower and on the battery. Not sure why they don't say PRO more often...

https://www.greenworkstools.com/collections/lawn-mowers/products/pro-80v-cordless-21-self-propelled-... [greenworkstools.com]

In fact, I'm not sure they even have an 80V product that isn't "PRO" since it's their top-of-the-line stuff. Including photo of the one Walmart shipped.
Original Poster
Aug 6, 2023
124 Posts
Joined Dec 2005
Aug 6, 2023
thebeaz
Original Poster
Aug 6, 2023
124 Posts
One more thing. It ships in mulch mode and that's the way I left it so no emptying the bag over and over. Don't even have to attach the grass catcher. I raised the cutting height from 1 to 3 (out of 7 positions). It also has an auto-sensing technology that speeds up the blade when needed (thick, tall, wet grass), then slows it back down.

I swear I don't work for Greenworks. Just more than impressed with what they've done here. You can see the before and after of what I found when I got here and what it looks like now.
Aug 7, 2023
65 Posts
Joined Apr 2013
Aug 7, 2023
tankforwin
Aug 7, 2023
65 Posts
Thanks, I had the same issue with Amazon not able to ship to Texas. Got it from Walmart.
Aug 7, 2023
992 Posts
Joined Jun 2014
Aug 7, 2023
AndrewG8296
Aug 7, 2023
992 Posts
I have their 60v self propelled and it is very good.
Aug 7, 2023
556 Posts
Joined Nov 2009
Aug 7, 2023
Feasible
Aug 7, 2023
556 Posts
On the Amazon page it states

Frequently returned item

Check the product details and customer reviews to learn more about this item.

I wonder why they are getting returned.
2

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Pro
Aug 7, 2023
1,326 Posts
Joined Nov 2010
Aug 7, 2023
RumzDizzle
Pro
Aug 7, 2023
1,326 Posts
Have the two 4ah batteries pack from Costco. I love this mower, also got the weed walker and blower combo (one 2ah battery that's significantly lighter… great for both). Very satisfied, my .3 acre lot only needs a bit more than one 4ah battery, using self propelled and mow about every two weeks when the grass is a bit thicker.

Just need the hedge trimmer and I'd be a very happy boy.
Aug 7, 2023
4,054 Posts
Joined Mar 2006
Aug 7, 2023
nightanole
Aug 7, 2023
4,054 Posts
Quote from hiperco :
Note that the Amazon version is the PRO version. It's my understanding that the non-pro batteries are not compatible. Quite silly actually. EDIT: Correction, I was thinking about the 82V "commercial" mowers, this 80V should be compatible with other 80V greenworks stuff.
You have to be a rocket scientist to figure out the difference between regular and pro. At best i can figure out that this is the old gen because it has round black steel handles and wire bar controls, and the newest gen has aluminum handles and flappers for controls. And the new gen can take two batteries at the same time and auto switch.
Last edited by nightanole August 7, 2023 at 03:55 AM.
4
Aug 7, 2023
4,054 Posts
Joined Mar 2006
Aug 7, 2023
nightanole
Aug 7, 2023
4,054 Posts
Quote from Feasible :
On the Amazon page it states

Frequently returned item

Check the product details and customer reviews to learn more about this item.

I wonder why they are getting returned.
Odds are because there is 4 billion different 20-21" deck greenworks mowers, and they didnt get the exact model they needed. Might have been wrong voltage, or 1" wrong deck, or was push instead of self propelled. Or they used it and realized they cant mow a half acre on a single charge and have to wait an hour for a recharge.
2
Aug 7, 2023
467 Posts
Joined Sep 2005
Aug 7, 2023
Packard8
Aug 7, 2023
467 Posts

Our community has rated this post as helpful. If you agree, why not thank Packard8

Quote from thebeaz :
One more thing. It ships in mulch mode and that's the way I left it so no emptying the bag over and over. Don't even have to attach the grass catcher. I raised the cutting height from 1 to 3 (out of 7 positions). It also has an auto-sensing technology that speeds up the blade when needed (thick, tall, wet grass), then slows it back down.

I swear I don't work for Greenworks. Just more than impressed with what they've done here. You can see the before and after of what I found when I got here and what it looks like now.
This is an older model. The newer model is sold by Costco (and GW online). I've owned both, and both work well. The newer model has a "turbo" switch on the controls, allowing you to set the higher speed without relying on the auto sensing feature. The new model also has a slightly different handle that folds more easily, and also has two battery ports that switch from the depleted battery to the fresh one automatically.

I bought the newer model from Costco about a year ago for $499 with two 4Ah batteries. The GW tools and batteries sold by Costco come with an 8 year warranty...4 from GW and additional 4 from Costco. If you see the new model from Costco on sale again (Reg $649) for $499, it's a better deal....2ea 4Ah batteries, plus the 8 year warranty on both the tool and batteries.
Last edited by Packard8 August 7, 2023 at 04:00 AM.
1
Aug 7, 2023
3,048 Posts
Joined Jun 2016
Aug 7, 2023
np1050
Aug 7, 2023
3,048 Posts
Quote from Packard8 :
This is an older model. The newer model is sold by Costco (and GW online). I've owned both, and both work well. The newer model has a "turbo" switch on the controls, allowing you to set the higher speed without relying on the auto sensing feature. The new model also has a slightly different handle that folds more easily, and also has two battery ports that switch from the depleted battery to the fresh one automatically.

I bought the newer model from Costco about a year ago for $499 with two 4Ah batteries. The GW tools and batteries sold by Costco come with an 8 year warranty...4 from GW and additional 4 from Costco. If you see the new model from Costco on sale again (Reg $649) for $499, it's a better deal....2ea 4Ah batteries, plus the 8 year warranty on both the tool and batteries.
I had the Costco model and returned it because it wasn't as easy to use as I thought and it kept shutting off. Greenworks support told me I was cutting too low, even though I wasn't. They weren't very helpful. The drive mechanism was also kind of difficult to use compared to my old toro gas mower. Also quite loud. A step below gas but I was shocked at how loud the greenworks was. there are plenty of reviews which echo my findings and many that have returned the mower as well.
2
Aug 7, 2023
467 Posts
Joined Sep 2005
Aug 7, 2023
Packard8
Aug 7, 2023
467 Posts
Quote from slkmaster2000 :
I had the Costco model and returned it because it wasn't as easy to use as I thought and it kept shutting off. Greenworks support told me I was cutting too low, even though I wasn't. They weren't very helpful. The drive mechanism was also kind of difficult to use compared to my old toro gas mower. Also quite loud. A step below gas but I was shocked at how loud the greenworks was. there are plenty of reviews which echo my findings and many that have returned the mower as well.
Definitely sounds like a defective unit, it should not "shut off" unless it encounters really heavy, tall, and/or wet grass. My lawn is pretty thick Bermuda grass and I use the mulch feature. I've found that if the grass is not dry, the clippings tend to clump on the lawn, so I've learned to wait until the grass is relatively dry before cutting. I never let it get too high before cutting, whether with a gas or battery mower. Keeping the blade sharp is also important, to chop up the clippings when mulching.

I guess "loud" is subjective. My GW mower is much quieter than the Kohler powered gas mower it replaced. My neighbor has an Ego battery mower, and it has a similar sound level to mine, I believe any electric (battery or corded) mower will be much quieter than any gas mower I've owned.
Aug 7, 2023
1,244 Posts
Joined Jun 2020
Aug 7, 2023
BeigeStew7045
Aug 7, 2023
1,244 Posts
Quote from Packard8 :
This is an older model. The newer model is sold by Costco (and GW online). I've owned both, and both work well. The newer model has a "turbo" switch on the controls, allowing you to set the higher speed without relying on the auto sensing feature. The new model also has a slightly different handle that folds more easily, and also has two battery ports that switch from the depleted battery to the fresh one automatically.

I bought the newer model from Costco about a year ago for $499 with two 4Ah batteries. The GW tools and batteries sold by Costco come with an 8 year warranty...4 from GW and additional 4 from Costco. If you see the new model from Costco on sale again (Reg $649) for $499, it's a better deal....2ea 4Ah batteries, plus the 8 year warranty on both the tool and batteries.
The question is, what do you have to do to get warranty service. I know ego (as much as they make great lawnmowers) does everything they can to get out of the warranty. And if you do need warranty service, you have to bring the lawnmower in to one of their service centers; they won't pay for shipping. Which is worthless if you don't have a big enough vehicle to fit the lawnmower in or might make a huge mess if you have to put the lawn mower in your vehicle.

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Aug 7, 2023
467 Posts
Joined Sep 2005
Aug 7, 2023
Packard8
Aug 7, 2023
467 Posts
Quote from BeigeStew7045 :
The question is, what do you have to do to get warranty service. I know ego (as much as they make great lawnmowers) does everything they can to get out of the warranty. And if you do need warranty service, you have to bring the lawnmower in to one of their service centers; they won't pay for shipping. Which is worthless if you don't have a big enough vehicle to fit the lawnmower in or might make a huge mess if you have to put the lawn mower in your vehicle.
I believe GW has the same policy as Ego, you have to take the mower to a warranty service provider. I have 6 GW 80V tools over a period of about 5 years and so far, I've only had to warranty three 2.0Ah batteries. It was done over the phone by providing the S/N and mfg dates. They sent new batteries and did not ask for the dead ones back. These batteries are expensive, and will need to be replaced eventually, just like a car battery. That's why I like to buy from Costco, with the 8 year warranty.

Their Customer Service is "clunky" to be kind, which seems to be a trend with most companies these days. There is a local service facility in my area, tho I haven't needed to use it. I think delivering large tools like a mower to a repair facility is pretty standard in the industry.

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