Lithium-Ion Powered Lawn Mower Featured Image Outdoor Power Equipment Reviews

Lithium-Ion Powered Lawnmower Round Up!


Lithium-ion OPE has gone viral this year! Am I allowed to say that a physical product has gone viral since it’s not online? Who cares! I’m going to say it anyway! It’s popular for several reasons. The biggest is that there’s no oil and gas to mix. Use it for the last time in the fall, store it for four months, and it starts as soon as you pull the handle. Assuming you remembered to charge the battery of course. There are also no cords attached to the tool to drag around. Man, I hated having to do the trimming growing up. Two or three extension cords connected and having to find new outlets as I worked around the house got old fast. The first electric mowers shared in that frustration.

There are other reasons to go with lithium-ion powered lawn mowers and other OPE options as well. Most companies tout the fact that it’s a “green” way to take care of your lawn. It also promotes lighter weight mowers, expanding the possible user base to folks that normally wouldn’t think they could handle a push mower. The big deal this year is that almost everyone packing at least 40 volts is claiming they’ve got gas power.

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We’ve got 10 of the most popular lithium-ion powered lawn mowers for you to take a closer look at with us and decide which one is right for you. We’ll look at deck size, power sources, and unique features that each brings to the table. We’ll take our team and mow some grass to look at power, mulching, and bagging. We’ll round them up and let you know where each one can reasonably expect to perform at its best.

Lithium-Ion Powered Lawn Mower Testing Grounds

Pro Tool Reviews contributing writer Tim Johnson graciously allowed us to come out and test our mowers on his 5 acre homestead. 5 acres may seem like a lot for lithium-ion powered lawn mowers to tackle… and it is. Tim’s yard taming tool of choice is the Husqvarna RX54i 54 Inch ZTR. However, his yard will give us plenty of space to do all the testing we want with grass to spare.

Lithium-ion Powered Lawn Mowers Drain Field

The grass itself is typical Florida Bahiagrass. It’s a tough grass that does very well whether we’re in the dry season or wet season. With temperatures that range from a cool, dry 30 degree low in the winter to a hot, humid 95 in the summer with near daily thunderstorms, Bahiagrass is versatile. Following droughts, it comes back much more quickly than the Bermuda and St. Augustine grasses found in this golfing Mecca. Bahiagrass isn’t as thick as some of the St. Augustine varieties, but let it grow for more than a week during the wet season and your mower will hate you. Underpowered mowers or undersharpened blades will leave the lawn looking like an 8 year old’s hair that he cut with a pair of safety scissors.

Storing a Lithium-ion Powered Lawn Mower

EGO 56V lawn mower folded

Lithium-ion powered lawn mowers appeal to users with smaller yards. Typically, you’ll max out at a 1/4 acre, though some now claim to cover up to a half acre. The point is, these yards don’t normally have room for a large storage shed. You’re likely going to store the mower in a small shed or garage, and the amount of space that it takes up is significant.

We looked at three main points for storage. Single pivoting models allow the handle to fold forward saving space. Many units offered double pivoting handles that scissored down to the same size as the deck. EGO offers a telescoping handle that we prefer over the double pivot style with the same resulting compact storage. A few models could take it a step further and are design to stand vertically, making for the ultimate storage solution. Of course, we couldn’t store a gas mower this way, so it’s another benefit of leaving the gas can at the curb (following all local and federal regulations for disposal, of course).

We ran into an issue with the Greenworks 40V mower. It is collapsible, however when we folded the handle forward with the batteries installed, the mower bypassed the safety features and turned on. Even after folding the handle back, it still ran. Since we were able to repeat this issue, we recommend that the mower not be folded down for storage.

It’s not just about the ability to collapse for storage, but also how naturally the mower achieves it. For that reason, mowers that had to be loosened to the point of disassembly did not qualify as having the ability.

Lithium-Ion Powered Lawn Mower Storage Options

Best Lithium-Ion Powered Mower for Storage: EGO (Folding, telescoping handle with vertical storage)

Size Matters

It’s a simple concept: mow a wider swath, make fewer passes. With power now up to 80V, we’ve eclipsed the 20″ deck size from the humble 14″ and 16″ beginnings. Three models now boast 21″ decks with 20″ being the new standard, save for those that are intentionally designed small for more precise cutting around detailed landscaping. In some European countries, for example, the yard is secondary to the home and landscape, making a 16″ deck size ideal for those small areas.

Lithium-Ion Powered Lawn Mower 21 Inch Deck

Echo, Greenworks, and Kobalt all came out with 21″ decks this year. Even though it’s only a 1″ larger blade that is roughly 5% greater in length, it’s cutting an 11% greater area. Of course, if you increase the workload, there has to be additional power to offset it. After our testing, it looks like the 40V mowers are going to be maxed out at 20″. That should still be fine considering that even gas powered push mowers tend to stop at the 21″ and 22″ deck sizes.

Lithium-Ion Powered Lawn Mower Deck Size

Largest Lithium-Ion Powered Lawn Mower Deck Size: Echo, Greenworks (80V), and Kobalt (21″)

Bagging, Mulching, and Side Discharge

At first, we weren’t sure that having a side discharge was all that big of a deal. After all, if you aren’t going to bag it, then why not mulch the grass? We discovered why when we sent all of the mowers over the septic tank drain field where the grass was much higher and thicker. Bags would have been emptied so frequently that it would have been frustrating. Mulching became so stressful that most of the mowers bogged down and shut down.  When both of those situations are at play, you want to be able to use the side discharge just to keep things moving along.

Sun Joe was the only mower in the group that didn’t offer mulching capabilities. In line with it’s seemingly European design, the Sun Joe iON is designed for bagging only on small yards.

Discharge Winner - Kobalt and Greenworks

One thing is certain when it comes to mulching – choose your battles carefully. Even the mowers that can handle the stress are going to drink deeply from their battery to do it. When that battery is done, so are you for as long as it takes to charge. You might have a 30 minute break or a 4 hour break depending on what system you have.

While lithium-ion powered lawn mowers either have the three features built in or they don’t, a couple stood out as being able to to perform the mulching in high stress situations better than the others. Not surprisingly, it was the Greenworks and Kobalt that offered the highest overall power.

Lithium-Ion Powered Lawn Mower Discharge Options

Best Lithium-Ion Powered Lawn Mower for Bagging, Mulching, and Side Discharge: Greenworks (80V) and Kobalt

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Cutting it Close

Most people don’t think too much about how close their mower can cut to the edge of the driveway, curb, or landscaping features. However, since Craftsman and Black & Decker touted their EdgeMax design, we wanted to know how the other mowers would fare in this category. We were surprised to find that the EdgeMax wasn’t the closest but also that all the mowers were in a pretty tight group. It ranged from four models with a 1″ distance to edge to Echo having the relative longest at 1-5/8″. We don’t think that this will be a deal breaker for anyone. Of course if you really despise trimming and that extra 1/2″  is going to ruin your day, look to both Greenworks models, Kobalt, and Worx for a 1″ distance to edge.

Lithium-Ion Powered Lawn Mower Distance to Edge

Closest Cut Against A Solid Object: Greenworks (40V and 80V), Kobalt, and Worx

Run Time

Voltage Versus Amp Hours

The big debate that seems to be going on behind the scenes is higher voltage versus more amp hours. Current thinking is that to add raw power, you increase the voltage. To improve run time, you add amp hours. Greenworks and Kobalt are thoroughly invested in higher voltage at 80 volts. EGO has decided to stand their ground at 56 volts, but has introduced a new 7.5 amp hour battery.

We can determine which batteries carry the most capacity by calculating the watt hours (volts x amp hours = watt hours). With its 7.5 amp hour, 56V battery, EGO carries by far the largest amount of stored energy in watt hours.

Run Time Winner - EGO

Watt hours aren’t the entire story though. It’s also about the electronics controlling how much power is actually delivered. On paper, it’s a linear equation. If your 80 volt battery only has to deliver 40V of power for the grass you’re cutting, it will last twice as long. That’s great. However, whatever the upper limit happens to be is fixed. Electronics in a 40V mower will limit from being able to reach 56V and sacrifice run time. The best mower is going to be the one that has the power to mow every part of your yard, but will also electronically back down that power to run more efficiently when it’s under lighter stress. Here’s breakdown of what each mower offers.

Lithium-Ion Powered Lawn Mower Watt Hours

About That Run Time…

Run time is more than just a factor of battery amp hours. It’s a combination of the total watt hours and how the mower adjusts to use them most efficiently. We tested the run time of each mower in a real yard going through high stress, low stress, and even no stress environments while they ran. We tried our best to keep them going to non-stop, though some shut down when they became overstressed or overheated. Not to worry though, we kept an accurate clock on each of them.

Each mower was tested with the battery or batteries that were included. If two came with the kit, we ran both to get the total run time. There’s an asterisk on this test though. EGO just came out with a 7.5 amp hour battery that blew everyone else out of the water. It ran the EGO Power Plus 56V Mower for 1 hour 47 minutes on a sunny afternoon in the high 80’s. That’s not the stock battery though, but it’s the winner by 45 minutes. For the stock batteries, Ryobi ran for just over an hour.

Run Time Winner - Ryobi

Lithium-Ion Powered Lawn Mower Run Time

Longest Lithium-Ion Powered Lawn Mower Run Time (Stock Battery/Batteries): Ryobi  – 1 hour, 2 minutes on two 40V, 2.4 amp hour batteries (192 watt hours)

Longest Lithium-Ion Powered Lawn Mower Run Time (Optional Battery): EGO – 1 hour, 47 minutes on a 56V, 7.5 amp hour battery (420 watt hours)

…and just in case we weren’t entertained enough, the US Air Force Thunderbirds kept us company courtesy of the Sun N’ Fun Fly In.

Thunderbirds

The Lineup

Black & Decker CM2040 40V Max Mower

Black and Decker CM2040 40V Max Lithium 20 Inch Mower with AutoSense Technology

  • Model: CM2040 40V Max Lithium 20 Inch Mower with AutoSense Technology
  • Power Source: 40V, 2.5 amp hour battery (2 included)
  • Deck Size: 20″
  • Blade(s): Single
  • Height Adjustments: six, 1-1/2″ – 4″
  • Mulching: yes
  • Bagging: 15 gallon
  • Side Discharge: yes
  • Cutting Distance to Edge: 1-3/8″
  • Stated Run Time: 30 – 45 minutes
  • Tested Run Time: 35 minutes
  • Weight: 43.5 pounds
  • Price: $399.99
  • Warranty: 2 years

Features

Black and Decker touts its AutoSense Technology that they’ve also included in some of their power tools. This automatically and electronically adjusts the amount of power being delivered to maximize the efficiency. They also include the EdgeMax design that allows for closer cutting along fences and driveways. While this is designed to leave only a short distance to the edge, there were models that got you closer.

Pros

Lightweight design and low rolling resistance made this one of the favorites when it came to effort. One of our reviewers even commented that it felt almost self-propelled.

Cons

We had some overheating issues with the batteries even though we were able to get 35 total minutes of run time. We did have to switch back and forth to allow some cooling time. Like the Craftsman, the batteries are the size of a 20V, 4.0 amp hour battery. This leaves wondering if they simply pushed more voltage out with a linear decrease in amp hours.

Conclusion

You’ll want to stay on top of your lawn so that you’re only cutting a couple of inches off the top each week to maximize the efficiency of this mower. The compact feel will be a plus for lawns that have some intricate landscaping to work around. We invited the ladies in our lives along with our children to enjoy an evening of tools and a cookout. I say this just to let you know that the Black & Decker was a favorite among the ladies that joined us. This is best used on a 1/4 acre or less.

Craftsman 98820 40V Mower

Craftsman 98820 20'' 40-Volt Lithium-Ion Battery 3-in-1 Cordless Push Lawn Mower

  • Model: 98820 20” 40-Volt Lithium-Ion Battery 3-in-1 Cordless Push Lawn Mower
  • Power Source: 40V, 2.5 amp hour battery (2 included)
  • Deck Size: 20″
  • Blade(s): Single
  • Height Adjustments: six, 1-1/2″ – 4″
  • Mulching: yes
  • Bagging: 15 gallon
  • Side Discharge: yes
  • Cutting Distance to Edge: 1-3/8″
  • Stated Run Time: unlisted
  • Tested Run Time: 27 minutes
  • Weight: 60 pounds
  • Price: $389.99
  • Warranty: 2 years

Features

While it doesn’t come right out and say it on the box, the Craftsman 98820 and Black & Decker CM2040 are pretty much the same mower. They don’t call the variable speed motor provided by the AutoSense proprietary name, but it also uses electronic technology built in to improve efficiency. It does tout the EdgeMax design name with the same intent of offering a close cut to bordering objects.

Pros

Despite the 60 pound weight that it claims, this is still a lightweight mower that’s not terribly difficult to push or maneuver. The compact design is great for small yards.

Cons

Something about the design of the battery and/or mower allowed the Craftsman to overheat after just 6 minutes on each battery. We were able to continue alternating them to get 27 minutes out of the system, but only by using each battery again after it cooled. One reviewer noted that the mower felt sluggish compared to the Black & Decker and that it seemed to kick up more debris.

Conclusion

Remind you of Black & Decker’s 40V mower? That’s because it’s the same mower packaged up for Craftsman. Even the warranty is through Black and Decker. We’re not really sure why this lists at more than 15 pounds heavier though. It didn’t seem like much, if any, difference to us. Perhaps they listed the weight with the packaging.

While these mowers are the same on paper, we did notice a couple of differences. First, the batteries shut down due to overheating more quickly. It also seemed to have a higher rolling resistance. While it’s not clear why this is the case, several of our reviewers noted the same points. To avoid the overheating issues and get better run time, mow in the cool of the day.

Like the Black & Decker, this is an option for small yards that require a compact mower to move around easily in, but doesn’t require a lot of time to cut.

Echo CLM 58V Cordless Mower

Echo CLM-58V Cordless Lawn Mower

  • Model: CLM-58V Cordless Lawn Mower
  • Power Source: 58V, 4.0 amp hour battery
  • Deck Size: 21″
  • Blade(s): single
  • Height Adjustments: seven, 3/4″ – 4″
  • Mulching: yes
  • Bagging: yes
  • Side Discharge: yes
  • Cutting Distance to Edge: 1-5/8″
  • Stated Run Time: up to 40 minutes
  • Tested Run Time: 29 minutes
  • Weight: 57 pounds
  • Price: $499
  • Warranty: 5 years consumer, 2 years commercial

Features

For a mower that seems really solid, there are only a couple of features to really talk about. First is the use of a brushless motor. Echo isn’t the only one in the group to employ one, but we love the extra power and run time that brushless technology offers. Echo also uses a composite deck that is warrantied for life. In Florida it doesn’t really matter where you go, there’s sugar sand. We can thank much higher ancient oceans for creating a statewide beach sand. The consequence is that the sand tends to eat away at decks over time before finally chewing a hole through it. We’re curious to see how this deck holds up against it over time.

Pros

Of the 21″ deck mowers, this is the lightest thanks to that composite deck. This model also received high marks for its automatic restart after stalling in tall grass and the power that noticeably increased when it came into more stressful situations. We liked the fact that the design resembled a traditional lawn mower rather than something out of the Jetsons. The design also felt solid and tight.

Cons

Most of the mowers we tested offered single handle deck height adjustments. This was not one of them. The run handles, (Which I prefer greatly over the steel bars of other models) came across as flimsy to one reviewer.

Conclusion

When any of these mowers use the term “professional”, we really think they’re falling into prosumer since the run time really isn’t there yet. Echo offers a lithium-ion powered lawn mower that has the power and feel that it’s at a level higher than most of the mowers tested. It’s still a notch below the power of the 80V mowers with power to spare in many situations. We’d propose they add a second battery to get the run time up over an hour or to be able to handle an entire yard that’s been neglected for a couple of weeks. You can reasonably mow a 1/2 acre with a second battery.

EGO LM2001 56V Cordless Lawn Mower

EGO LM2001 56V Power+ Lithium-Ion Cordless Lawn Mower

  • Model: LM2001 56V Power+ Lithium-Ion Cordless Lawn Mower
  • Power Source: 56V, 4.0 amp hour battery (7.5 amp hour battery now available separately)
  • Deck Size: 20″
  • Blade(s): single
  • Height Adjustments: five, 1.2″ – 3.5″
  • Mulching: yes
  • Bagging: 15.8 gallons
  • Side Discharge: yes
  • Cutting Distance to Edge: 1-3/8″
  • Stated Run Time: Up to 45 minutes on 4.0 amp hour battery
  • Tested Run Time (4.0 AH): 36 minutes
  • Tested Run Time (7.5 AH): 1 hour, 47 minutes
  • Weight: 62 pounds
  • Price: $499
  • Warranty: 5 years

Features

When we did our review of the EGO 56V Power Plus line, we realized this was the mower that was destined to change the landscape of lithium-ion OPE. While EGO hasn’t seen a need to do a major design update yet, what they have done is introduce a 7.5 amp hour battery. We already know that the mower is powerful enough to cut our lawns and now it looks like they’re poised to be way ahead in run time as well. In our low stress run time test, the new battery ran constantly for 1 hour, 47 minutes.

One update that EGO did employ is where the motor meets the blade under the deck. Originally, part of the motor windings were exposed. This, of course, caused some concern even though the 5 year warranty would cover it. They’ve fixed that now so the housing underneath is better protected.

Pros

EGO Handle

This is the best design that we’ve seen for storage. The combination of the forward folding, telescoping handle and vertical stand up is easier to use than anyone else’s. The handle also offers a more ergonomic hand position (a design that Worx shares). Reviewers really liked the maneuverability, balance of weight, and easy height adjustment. They also noted the sturdy build and the indicator lights on the battery warning of high stress and low battery situations.

Cons

56V is powerful, but we had to mow half strips in the deeper grass that we cut while mulching.

Conclusion

A year after taking the OPE market by storm, this is still the best overall design that we’ve seen from setup to storage and mowing in between. With a battery capable of running over an hour and a half, you can easily mow a 1/2 acre or more with this model.

Greenworks G-Max 40V Twin Force Mower

Greenworks 25302 G-Max 40V 20-Inch Twin Force Mower

  • Model: 25302 G-Max 40V 20-Inch Twin Force Mower
  • Power Source: 40V, 4.0 and 2.0 amp hour battery (1 each)
  • Deck Size: 20″
  • Blade(s): dual
  • Height Adjustment: five, 1-3/8″ – 3-3/8″
  • Mulching: yes
  • Bagging: yes, 20.5 gallons
  • Side Discharge: no
  • Cutting Distance to Edge: 1″
  • Stated Run Time: up to 70 minutes
  • Tested Run Time: 40 minutes
  • Weight: 62
  • Price: $399
  • Warranty: 4 year consumer, 90 day commercial

Features

This was the only twin blade design in our test, but there’s a good reason for it. Two 10″ blades have a total cutting area exactly half of what a single 20″ blade does but with the same cutting width. Since we’re mainly concerned about the width of the cut and not the area, this is a more efficient way to use the power. When it came to the high grass, this was the only 40V that received positive comments on its response to the higher stress. The dual battery system runs just one battery at a time to power both blades—and it switches over to the second battery automatically when the first one runs out.

Pros

This was the only 40V system to deal well with the high grass thanks to the combination of smaller blades and the Smart Cut system that diverts extra power in stressful cutting environments. Several of our reviewers commented about how well balanced this mower is along with the easy deck height adjustment. Several also mentioned the solid build quality.

Cons

The only real concern that we have is what happened when we folded the handle forward for storage. The way the cable stretch bypassed the push button safety and started the mower without a hand anywhere on the unit. It continued to run until we pulled the safety switch and pressed the push button safety to reset it. After looking around online, I couldn’t find anyone else that has mentioned this issue, so I’m hoping it’s an isolated problem.

Conclusions

Even though this model has been out for a couple of years, Greenworks is still a legitimate contender in the 40V class. Well balanced and solidly built, be prepared to pull the trigger on this one for lawns up to a 1/4 acre, assuming our little issue is isolated.

Greenworks GLM801601 80V 21-inch Cordless Mower

  • Model:  GLM801601 80V 21-Inch Cordless Lawn MowerGreenworks GLM801601 80V 21-Inch Cordless Lawn Mower
  • Power Source: 80V, 2.0 amp hour battery (2 included)
  • Deck Size: 21″
  • Blade(s): single
  • Height Adjustment: seven
  • Mulching: yes
  • Bagging: yes
  • Side Discharge: yes
  • Cutting Distance to Edge: 1″
  • Stated Run Time: up to 35 minutes
  • Tested Run Time: 50 minutes
  • Weight: 62
  • Price: $399 ($856 as tested)
  • Warranty: 4 year consumer, 1 year commercial

Features

The big deal with Greenworks’ lithium-ion mower is that they’ve taken the outright lead with an 80V platform. The battery is just 2.0 amp hours, but they’ve included a pair of them in the kit we reviewed (the common advertised price for this mower is $399, but that’s without batteries or a charger). With the highest voltage rating also comes the largest deck size at 21″. It’s not written all over their website, but the Greenworks Pro 80V Mower does take advantage of a brushless motor.

Pros

It’s an 80V powerhouse that ran for 50 minutes! The Greenworks 80V mower shares the deck size lead at 21″ and was heralded by our reviewers for it’s easy deck height and handle height adjustments. This is another mower that looks traditional and was the generally preferred look among the guys. One in particular commented that his neighbor won’t make fun of him with this design. As if you needed any other reasons to look at Greenworks, it’s priced $100 below its closest competitors.

Cons

The steel deck provides excellent durability, but the tradeoff is weight. Give a bunch of guys and girls a bunch of mowers without steel decks, and weight will be the first thing they mention when they get to this one. Heck, it was the first thing I noticed when I was putting them together.

Conclusion

I don’t know if we’ll keep going beyond 80 volts. With this kind of power, the only thing that seems to be lacking is the run time to ensure you can mow a half acre on a single charge. In most low stress cases, you should be able to already. Go on vacation for a couple of weeks and you’ll be splitting the yard into 2 sections while you wait for batteries to charge. While the Greenworks 80V and Kobalt 80V are essentially the same mower, the slight differences (mainly in appearance) give the nod to Greenworks. As soon as you look at the price tag, the only reasons not to go with Greenworks is if you’re already invested in another battery platform or you need something lighter weight.

Kobalt KM2180B-06 80V 21-inch Mower

Kobalt KM2180B-06 Kobalt 80-Volt Max Lithium Ion (Li-ion) 21-in Deck Width Cordless Electric Push Lawn Mower with Mulching Capability

  • Model: KM2180B-06 Kobalt 80-Volt Max Lithium Ion (Li-ion) 21-in Deck Width Cordless Electric Push Lawn Mower with Mulching Capability
  • Power Source: 80V, 2.0 amp hour battery (two included)
  • Deck Size: 21″
  • Blade(s): single
  • Height Adjustments: seven
  • Mulching: yes
  • Bagging: yes
  • Side Discharge: yes
  • Cutting Distance to Edge: 1″
  • Stated Run Time: unlisted
  • Tested Run Time: 48 minutes
  • Weight: unlisted
  • Price: $499
  • Warranty: 5 years

Features

It certainly looks like Kobalt and Greenworks worked together on this project as Kobalt shares the voltage lead at 80V. Like the Greenworks mower, it boasts a 21″ deck and is kitted with a pair of 2.0 amp hour batteries. Also like its cousin, it features a brushless motor.

Pros

I could creatively reword what I said about Greenworks or just say the same exact thing. Which would you prefer?

The Kobalt 80V mower shares the cutting width lead at 21″ and was heralded by our reviewers for its easy deck height and handle height adjustments.

Cons

Again, since the only real differences are in the upper housing here, Kobalt and Greenworks share the same cons. The steel deck provides excellent durability, but the tradeoff is weight.

Conclusion

Unlike Black & Decker and Craftsman, this set of twins don’t seem to have any noticeable differences other than color and upper motor housing. Okay, there’s the tire tread as well. It’s going to boil down to a preference of look here as the performance is both identical and outstanding. You could always paint some orange racing stripes on the Kobalt and slap a University of Florida sticker on it… just sayin’. Even though it’s priced $100 higher than Greenworks, Lowe’s has these in stock. Unless you’ve got time to wait for the next shipment in from Greenworks, pull the trigger on this one.

Ryobi RY40170 40V Lawn Mower

  • Model: RY40170 40V 20″ Brushless Cordless Lawn MowerRyobi RY40170 40V 20" Brushless Cordless Lawn Mower
  • Power Source: 40V, 2.4 amp hour battery (2 included)
  • Deck Size: 20″
  • Blade(s): single
  • Height Adjustments: seven, 1.25″ – 3.75″
  • Mulching: yes
  • Bagging: yes
  • Side Discharge: no
  • Cutting Distance to Edge: 1-1/8″
  • Stated Run Time: 45 minutes
  • Tested Run Time: 1 hour, 2 minutes
  • Weight: 44.7 pounds
  • Price: $399
  • Warranty: 5 years

Features

Ryobi is another lithium-ion mower that features a brushless motor on a 40V platform. It pushes a 20″ blade and includes a pair of 2.4 amp hour batteries with the kit.

Pros

We’re still in awe of the run time that lasted over an hour with this lightweight 40V system running on a pair of 2.4 amp hour batteries. Ryobi clearly did something right with the efficiency on this model. The brushless motor certainly helps with the longer run time. This was another mower that bogged down in tall grass, but auto restarted once the stress was reduced.

Cons

Users may prefer more than just 2 handle height positions. Our reviewers also noted that the Ryobi mower felt wobbly with some lateral movement apparent in the rear wheels. We’d also like to have the option of a side discharge.

Conclusion

The run time is getting high enough to think about going for that 1/2 acre lawn, but you realistically will need to keep it to under 1/3 to avoid having to stop for recharging unless it’s all light work. This is another lightweight model that will appeal to users that don’t want mowing duties to double as strength training.

Sun Joe

iON16LM Sun Joe iON 40-Volt Cordless 16-Inch Lawn Mower w/ Brushless Motor

  • Model: iON16LM Sun Joe iON 40-Volt Cordless 16-Inch Lawn Mower w/ Brushless Motor
  • Power Source: 40V, 4.0 amp hour battery
  • Deck Size: 16 inches
  • Blade(s): single
  • Height Adjustments: six, 1.18″ – 3.15″
  • Mulching: no
  • Bagging: 9.25 gallons
  • Side Discharge: no
  • Cutting Distance to Edge: 1-3/8″
  • Stated Run Time: up to 40 minutes
  • Tested Run Time: 29 minutes
  • Weight: 37.3 pounds
  • Price: $399
  • Warranty: 2 years

Features

The SunJoe iON lawn mower showed up on our radar last year when we found that this little mower packed a lot more than meets the eye. It features the smallest cutting deck at 16″ and lightest weight (37.3 pounds) of all the mowers in our test. Don’t assume that this is a downside for SunJoe though. Rather than going with smaller batteries and having to send two along, the SunJoe iON comes with a 4.0 amp hour battery to power its brushless motor.

Pros

This is the lightest of all of the mowers we tested. Almost everyone commented on the light weight and easy maneuvering of the SunJoe.

Cons

One of the first things that I noticed when looking closer at the SunJoe is that its only discharge method is bagging. No side discharge or mulching is designed to be done with this model. The relatively smaller bag at less than 10 gallons will keep you stopping to dump if you have much more than a small lawn. This mower did not respond well to higher grass and nearly scalped the grass in places where there were small elevation changes (when we had the deck height set too low overall).

Conclusion

This is a mower well designed to light, flat work. It’s great around intricate landscaping features and for folks that need to have the lightest weight possible. Don’t plan on going over 1/4 acre lawn unless you really like emptying that bag often and be cautious of scalping if you’re on the lowest deck setting.

Worx WG771 56V Cordless Lawn Mower

  • Model: WG771 56V MaxLithium Cordless 19″ Lawn Mower w/ IntelliCutWorx WG771 56V MaxLithium Cordless 19" Lawn Mower w/ IntelliCut
  • Power Source: 56V, 2.5 amp hour battery (2 included)
  • Deck Size: 20″
  • Blade(s): single
  • Height Adjustments: seven, 1.25″ – 4″
  • Mulching: yes
  • Bagging: 13 gallons
  • Side Discharge: yes
  • Cutting Distance to Edge: 1″
  • Stated Run Time: unlisted time, up to 9400 square feet
  • Tested Run Time: 35 minutes
  • Weight: 58.9 pounds
  • Price: $499.96
  • Warranty:  3 years

Features

Worx comes out using the same 56V platform as EGO while adding some interesting features to consider. The first thing we noticed were the front wheels on 360 degree rotating casters. This should make Worx the only mower where we’re specifically emphasizing its maneuverability. Worx also includes a wash out port for the steel deck. The IntelliCut system allows you to deliver additional power when needed by switching from Eco to Turbo modes with the flip of a dial.

Pros

As predicted, we loved the caster wheels and the maneuverability that they offer. It creates a near zero turn function. As one reviewer put it, “You can lock the front caster wheels in place, but why would you want to?” Having the best battery indicator of the group, Worx placed a 4 LED indicator set just below the handle in easy view. If you use just one of the batteries, you’ll notice that you start off at half capacity. This is the only lithium-ion powered lawn mower that we’ve seen come out with an integrated deck cleaning port for your hose. It’s also the only mower that we tested with an intentionally designed mulching blade, dubbed the NutriCut.

Worx Wheels

Cons

As the third steel deck mower in the group, this one is heavy as well. When mowing on a low deck height, this mower was tougher to push through taller grass than the others and it seemed to stall more quickly under high stress.

Conclusion

This extremely feature-rich mower’s pros outweigh the cons by a significant margin. Worx still has some work to do though. At the same price point as Greenworks’ and Kobalt’s 80V systems, it was tougher to push (yet easier to maneuver) and lacked the run time of the other top tier priced models.

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72 Comments on "Lithium-Ion Powered Lawnmower Round Up!"

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Hank
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Great review just wondered about Kobalt 60volt mower? Good? $100 off at Lowes

Robert Cotton
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I guess Ryobi heard you about the better storage options. Ryobi Model # RY40180 can now be stored upright and has a telescoping handle.

Dave
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I may be missing something ? but as far as i know the EGO 56 Volt is the ONLY SELF PROPELLED option -mower(they sell manual and self propelled 56V) – in all of the mowers that were reviewed and that fact was never even mentioned! For many folks having long lasting mowing time AND being SELF PROPELLED is a big plus. Then add the fastest recharge time of any of them – about 30 min full recharge for their 7.5 amp ‘all in the box’ deal. Finally ad the many great reviews ( about 90% are happy with it seems… Read more »
Joe
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I love to see a review done on the Bosch Professional Battery Lawnmower

Clint DeBoer
Admin

As soon as they make it available in the U.S. market.

Joe
Guest

I’m a landscaper and need the right tools for the job

I didn’t see anything here that could even come close for that type of work

I’m sure that this was just a home owner version review

Do you ever do pro landscape battery mowers?

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