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Sun Joe 24V-X2-21LM 48-Volt 21-Inch 1100-Watt Max Brushless Cordless Lawn Mower, 7-Position Mowing Height Adjustment w/Rear Collection Bag

4.4 4.4 out of 5 stars 2,896 ratings

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Eligible for Return, Refund or Replacement within 30 days of receipt
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Kit (w/ 2x 4.0-Ah Battery and Charger)
21-Inch Cordless Mower

Purchase options and add-ons


About this item

  • [POWERFUL]: 1100-watt brushless input and 900 W brushless output motor runs cooler and lasts longer than traditional brush motors
  • [LIGHTWEIGHT]: Lightweight at under 54 lbs with easy-glide wheels for maximum mobility in the yard + garden
  • [MOWING WIDTH]: 20-inch mowing width
  • [HEIGHT-ADJUSTMENT]: 7-position manual height-adjustment lever: 1.2-inch to 3.5-inches
  • [COLLECTION BAG]: 13.2 gallon grass collection bag prevents littering your lawn with clippings
  • [IONMAX 24-VOLT SYSTEM]: Includes 2 x 4.0 Ah lithium-ion battery for up to 25 of rechargeable runtime

Customer ratings by feature

Easy to assemble
4.7 4.7
Light weight
4.6 4.6
Maneuverability
4.5 4.5
Battery life
3.8 3.8

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$379.99
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This Item
Sun Joe 24V-X2-21LM 48-Volt 21-Inch 1100-Watt Max Brushless Cordless Lawn Mower, 7-Position Mowing Height Adjustment w/Rear Collection Bag
Sun Joe 24V-X2-21LM 48-Volt 21-Inch 1100-Watt Max Brushless Cordless Lawn Mower, 7-Position Mowing Height Adjustment w/Rear Collection Bag
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Price$379.99$299.99$231.91$219.00$199.00$229.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Tuesday, Apr 2
Customer Ratings
Easy to assemble
4.7
4.4
4.6
4.6
4.6
4.5
Light weight
4.6
4.5
4.6
4.7
4.7
4.5
Maneuverability
4.5
4.2
4.3
4.5
4.4
4.1
Battery life
3.8
3.2
3.0
Noise level
4.8
4.4
4.3
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
power source
Battery Powered
Battery Powered
Battery Powered
Corded Electric
Corded Electric
Battery Powered
material
Alloy Steel
Metal
Alloy Steel
Plastic
Alloy Steel
cutting width
21 inches
16 inches
14 inches
20 inches
15 inches
16 inches
number of positions
7
6
3
5
5
operation mode
Manual
Automatic
Manual
Manual
Manual
Automatic
weight
54 pounds
37.3 pounds
23.1 pounds
20.83 pounds
27.1 pounds
29.8 pounds

Product guides and documents

Product Description

MOW POWER! Cutting-edge grass-grooming tech meets the 24V IONMAX Series with the 48-Volt Cordless Lawn Mower from SUN JOE. Powered by the exclusive IONMAX lithium-ion battery system, Sun Joe includes two 24-Volt, 4.0 Ah lithium-ion batteries for no-fade power + performance, and zero carbon emissions for cleaner air. And the dual-port charger quickly powers up two batteries at once — in just under 2 hours! Sun Joe’s innovative motor design — 1100 W brushless input motor and 900 W brushless output motor —is engineered for efficiency, providing you with maximum motor performance and extended motor life to keep your mower running stronger, longer. The durable steel blade mows a path 20-inches wide in a single pass, for an even cut every time. Customize cutting height with the 7-position height-adjustment level — from 1.2 in. to 3.5 in. for the perfect, precise cut tailored to your lawn. And Sun Joe includes and 13.2 gal. grass bag to collect clippings and prevent thick thatch build-up. Plus, the built-in grass indicator window lets you know when it’s time to empty the collection bag! So, when there’s work to be done, Go With Joe® for the legendary power + performance of the 24V-X2-21LM 48-Volt Cordless Lawn Mower from SUN JOE®. GET EQUIPPED®.

Product information

Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Sun Joe 24V-X2-21LM 48-Volt 21-Inch 1100-Watt Max Brushless Cordless Lawn Mower, 7-Position Mowing Height Adjustment w/Rear Collection Bag


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Customer reviews

4.4 out of 5 stars
4.4 out of 5
2,896 global ratings

Customers say

Customers like the performance, ease of assembly, weight and battery life of the lawn mower. For example, they mention that it does its job really well, it's easy to start and that it comes pretty much assembled. That said, they like that it cuts well, even in thicker patches and that the battery lasted over a half hour. That's it for the positives.

AI-generated from the text of customer reviews

301 customers mention231 positive70 negative

Customers like the performance of the lawn mower. They mention that it does its job really well, gets the job done nicely, and works perfectly for their lawn. Some say that the battery charge does not last long. Overall, most are happy with their purchase and recommend it to others.

"...Does a great job." Read more

"...Over all this mower worked awesome and got the job done...." Read more

"...I’ve used it 3 times and it’s super easy to use. It does a great job. The batteries stay charged enough to mow the back at least two times...." Read more

"...The new mower arrived and I put it together and it won’t start...." Read more

269 customers mention252 positive17 negative

Customers find the assembly and use of the lawn mower incredibly simple. They say the warranty and registration set up was super easy. Customers also mention that the mower comes pretty much assembled, and requires no tools to put together.

"...Did a quick test run with the 1/2 charge in the batteries - simple start, all good.Charged overnight so not sure of charge time...." Read more

"...This unit comes pretty much assembled......just need to attach the push extension that doesn't even require any tools...." Read more

"...I’ve used it 3 times and it’s super easy to use. It does a great job. The batteries stay charged enough to mow the back at least two times...." Read more

"...5 minutes total assembly with 0 tools required...." Read more

240 customers mention226 positive14 negative

Customers find the weight of the lawn mower to be incredibly lightweight. They also say it's maneuverable and has two batteries that last a long time.

"...It weighs almost nothing and is easy to clean and put away. I have bought more sun joe items since this mower blew my mind on cordless mowers...." Read more

"...It's light weight.....about 35 lbs.......& is easy to push...." Read more

"...So yeah, I'm impressed with it's mowing quality, it's light weight, it's Instant start, and it's easy maneuverability...." Read more

"...belching from the mower, quieter, makes a good cut, and it's comparatively lighter and more maneuverable...." Read more

210 customers mention160 positive50 negative

Customers like the battery life of the lawn mower. They say it lasted over a half hour going through tough stuff, and the twin battery pack gave full power. Customers are also satisfied with the mower's battery life, saying it runs for a good amount of time on a full charge. The mower comes with 2 batteries, but it requires both to be locked into place.

"...I ran it non stop for about 50-52 min with almost no loss in power at the end. See pictures for yard size...." Read more

"...Battery life hasn't been a problem after two uses. The bag is small & fills fast...." Read more

"...It does a great job. The batteries stay charged enough to mow the back at least two times. I hope it holds up but am very happy for now." Read more

"...The batteries don’t last very long and I need at least 2 sets of batteries for both devices to complete the job...." Read more

155 customers mention142 positive13 negative

Customers are satisfied with the cut quality of the lawn mower. They say it cuts well, even in thicker patches that would bog down their ICE. It's easy to assemble and maneuver, and it leaves an even cut with very little clipping globs. It is faster to cut with this mower than with other models, and can cut the whole yard in no time. It also cuts low to 1 inch in areas that aren't that large.

"...7-position height adjustment. Smooth and easy to use - all wheels with one handle...." Read more

"...Then on the second pass I put it back down and it cut it up with no problems. (See video)..." Read more

"...It's light weight.....about 35 lbs.......& is easy to push. The blade was sharp, it cuts well but doesn't have what I would call "great" torque, ie..." Read more

"...No more oil or gas, no smoke belching from the mower, quieter, makes a good cut, and it's comparatively lighter and more maneuverable...." Read more

143 customers mention130 positive13 negative

Customers find the lawn mower easy to use. They mention it starts up quick, is easy to push and maneuver around, and is lightweight. Customers also say it rolls easily and the batteries charge quickly. They say the handling is OK and it's easy to operate.

"...Rolls easily.Battery insert/remove pretty simple - just squeeze the clips to remove.Does a great job." Read more

"...It starts up quick and is so easy to push and maneuver around...." Read more

"...It's light weight.....about 35 lbs.......& is easy to push...." Read more

"...mowing quality, it's light weight, it's Instant start, and it's easy maneuverability...." Read more

94 customers mention75 positive19 negative

Customers like the value of the lawn mower. They say it's very good for the price, with no unexpected costs. Customers also say it works very well and is worth every penny spent. They mention that the electric mower saves them a third of the time and is very convenient.

"...Overall, it's is very good for the price and what you get...." Read more

"...The price one the 21" was good. I first one I ordered had an uneven deck--right front wheel was not anywhere near the ground...." Read more

"Never buying gas lawn tools again. Electric probably saves me a third of the time, not to mention charging the batteries probably costs a nickel vs...." Read more

"This electric mower is much cheaper than others you can find and there's a reason for that...." Read more

141 customers mention60 positive81 negative

Customers are mixed about the quality of the mower. Some mention it's a solid mower, very robust, and impressed with its mowing quality. However, others say that the blade is very fragile, the lever connects to the rear axel is broken, and the push handle cracked during second use. The rubber coat in the main handle got torn after three sets of use.

"...I noticed when I first got it that the grass catching bag had big crack but customer service helped me register it and get a replacement bagger...." Read more

"...So yeah, I'm impressed with it's mowing quality, it's light weight, it's Instant start, and it's easy maneuverability...." Read more

"OK, in all honesty, received it in a crushed box with cracked battery lid but Amazon made things right, maybe SunJoe should upgrade the thickness of..." Read more

"...there are no gas fumes, it's light and easy to push and mows the lawn at least three times before I need to charge the batteries." Read more

Love this mower!
5 Stars
Love this mower!
I had never mowed in my life. I recently moved from a townhome to a house. The HOA takes care of the front lawn and I must take care of the backyard. I knew nothing about mowers or mowing. I researched mowers and read reviews and decided on this one. I’ve used it 3 times and it’s super easy to use. It does a great job. The batteries stay charged enough to mow the back at least two times. I hope it holds up but am very happy for now.
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Top reviews from the United States

Reviewed in the United States on August 25, 2023
Style: Kit (w/ 2x 4.0-Ah Battery and Charger)Size: 21-Inch Cordless MowerVerified Purchase
Customer image
5.0 out of 5 stars Feels durable, good battery life.
Reviewed in the United States on August 25, 2023
Showed up a day early.

Relatively simple assembly - several pictures if you don't want to read.
Did a quick test run with the 1/2 charge in the batteries - simple start, all good.
Charged overnight so not sure of charge time.

On a full charge it finished the whole yard - not quite 1/4 acre (see pic, plus some strips on the sides and front). Approximately 40 minutes of mowing time.
Cut grass to approximately half its height on "mulch mode" - no rear bag or side discharge.
The trimmings were chopped up VERY small.

Replaced a 21-inch gas mower so same width but about 10 pounds lighter.
Has a steel deck so not as light (54 pounds) as some of the other all-plastic mowers around. But also doesn't feel like a toy.

7-position height adjustment. Smooth and easy to use - all wheels with one handle.
I used the middle slot and the grass was 2" or so when done.

Rolls easily.
Battery insert/remove pretty simple - just squeeze the clips to remove.

Does a great job.
Images in this review
Customer image
Customer image
9 people found this helpful
Report
Reviewed in the United States on July 25, 2020
Style: Kit (w/ 2x 4.0-Ah Battery and Charger)Size: 17-Inch Cordless MowerVerified Purchase
Customer image
5.0 out of 5 stars Mind Blowing Results...
Reviewed in the United States on July 25, 2020
6/28/2021 New update after a year of using and abusing this mower:

I am updating my review because this mower is a beast. After a year the battery’s still hold a charge and i still get over an hour of moving. It weighs almost nothing and is easy to clean and put away. I have bought more sun joe items since this mower blew my mind on cordless mowers. After a year I have only had to buy a new blade for it.
(I have also updated my video to HD)
———————————————————
I am still so amazed at how good of a job this little mower does. I will start out saying it changed they way I look at electric battery operated lawn tools.

The first thing I noticed when I started to use it is that it is so quiet. Am talking about having a peaceful mowing experience. I was able to still hear the birds chirping from the trees and even my wife from the garden. It starts up quick and is so easy to push and maneuver around. I just knew off that bat that this mower was going to be getting a review and a good one.

Now for the details about the performance. With the battery’s charged I started a timer. I got my whole yard mowed and it still wasn’t dead. I ran it non stop for about 50-52 min with almost no loss in power at the end. See pictures for yard size. I also ran it really hard by cutting grass that was thick and tall. About 6 inches or so. I will also leave a picture of the mover next to the grass I was cutting. If it’s is really tall grass I would mow with the front wheels off the ground so that the clippings won’t clog up the housing. Then on the second pass I put it back down and it cut it up with no problems. (See video)

Now in some of the other reviews I saw people say that it will not cut the grass low enough but it will and I posted pics. I first started with mowing a spot with it set all they the way up about 3inch cutting high. Then I did one row with it set all they way down #1 at about .5 inch. The left one in the picture and then I set it for 1inch #2 for the right side. It is also easy to adjust the deck height when needed.

Over all this mower worked awesome and got the job done. The only somewhat con about it is that I’d dose not come with a discharge port for the grass clippings when mulching. So it can start to pack the grass up in the deck. But again I was cutting 5-6 inch tall grass that would even pack in on a gas mower. I noticed when I first got it that the grass catching bag had big crack but customer service helped me register it and get a replacement bagger. 10/10 on Support.

This mower comes with a 2 year warranty that also include the 2 battery’s. You just can’t beat that. I will highly recommend this mover for anyone wanting a mind blowing experience. In the pictures I am showing you my front yard and small side wall. Hope this info will help you.
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208 people found this helpful
Report
Reviewed in the United States on June 22, 2022
Style: Kit (w/ 2x 4.0-Ah Battery and Charger)Size: 17-Inch Cordless MowerVerified Purchase
2 people found this helpful
Report
Reviewed in the United States on March 16, 2024
Style: Kit (w/ 2x 4.0-Ah Battery and Charger)Size: 17-Inch Cordless MowerVerified Purchase
Customer image
5.0 out of 5 stars Love this mower!
Reviewed in the United States on March 16, 2024
I had never mowed in my life. I recently moved from a townhome to a house. The HOA takes care of the front lawn and I must take care of the backyard. I knew nothing about mowers or mowing. I researched mowers and read reviews and decided on this one. I’ve used it 3 times and it’s super easy to use. It does a great job. The batteries stay charged enough to mow the back at least two times. I hope it holds up but am very happy for now.
Images in this review
Customer image Customer image Customer image Customer image
Customer imageCustomer imageCustomer imageCustomer image

Top reviews from other countries

LocoLama
5.0 out of 5 stars Great
Reviewed in Canada on October 29, 2023
Liz LeBlanc
1.0 out of 5 stars arrived broken...no replacement available...very disappointed with Amazon.
Reviewed in Canada on May 23, 2023
Style: Kit (w/ 2x 4.0-Ah Battery and Charger)Size: 16-Inch Cordless MowerVerified Purchase
Customer image
Liz LeBlanc
1.0 out of 5 stars arrived broken...no replacement available...very disappointed with Amazon.
Reviewed in Canada on May 23, 2023
Images in this review
Customer image
Customer image
Bradley Douglas Arner
1.0 out of 5 stars Did not work straight out of the box.
Reviewed in Canada on September 18, 2023
One person found this helpful
Report
Jason Nemeth
2.0 out of 5 stars Do not buy refurbished or deal products that say there is moderate discolouration or whatever
Reviewed in Canada on June 15, 2023
4 people found this helpful
Report
gerald wangeci
5.0 out of 5 stars Worth it
Reviewed in Canada on June 19, 2023
One person found this helpful
Report