Independent editorial comparison by JPB Software Solutions LLC, based on manufacturers' published specifications. We are not paid by these manufacturers. As an Amazon Associate I earn from qualifying purchases: some "Check price on Amazon" links on this page are affiliate links, and commissions never influence our rankings.
Battery Lawn Mowers · Buying guide · Updated October 2026
Best Battery Lawn Mowers: EGO vs Greenworks vs Ryobi vs DeWalt
Cordless electric mowers have closed most of the performance gap with gas, but battery voltage, included amp-hours and manufacturer-stated runtime vary enough between brands to matter for yard size. This guide lines up four current 21-inch self-propelled models side by side using only the figures published on each manufacturer's official product page, with no first-hand testing claims.
Based on published specifications, the LM2135SP combines a 60-minute manufacturer-claimed runtime with an interchangeable blade system and the longest published tool warranty (5 years) in this group, covering the widest range of lawn types without a major published weakness.
The blade-swapping system adds versatility, but EGO does not publish a weight figure for this specific model, making it harder to compare portability against rivals.
Greenworks LM2146S
The widest height-adjustment range and largest included battery, but at 64 lbs it is the heaviest mower published here.
Ryobi RY40HPLM02
The longest claimed runtime and a handy onboard display, but Ryobi does not publish a charge time or warranty length on its own product page for this kit.
DeWalt DCMWSP244U2
The most tool-battery crossover with DeWalt's existing 20V MAX lineup, but it ships with the slower 1.25A chargers and DeWalt does not publish a mower weight or charge time.
Side by side
Compare the specs
All figures below come from each manufacturer's official product page. Runtime figures are manufacturer claims measured under specific test conditions, not independent lab results. Where a figure was not published, it is marked Not listed rather than estimated.
Battery Lawn Mowers specifications with category winners
Spec
EGO Power+ 21" Select Cut LM2135SP
Greenworks 60V 21" Dual Blade LM2146S
Ryobi 40V HP Brushless 21" RY40HPLM02
DeWalt 2X 20V MAX 21.5" DCMWSP244U2
Deck
21 inches, Select Cut interchangeable multi-blade system
21 inches, stamped steel deck, dual-blade RAZORCUT system
21 inches, composite deck, CROSS CUT multi-blade system
21.5 inches, brushless direct-drive motor
Voltage
56V ARC Lithium
60V
40V HP Brushless
2x 20V MAX (40V combined)
Included battery
1x 56V 7.5Ah battery and Power+ Rapid Charger included
Winner1x 60V 8.0Ah battery and 6A charger included
2x 40V 6.0Ah batteries and charger included
2x 20V MAX 10.0Ah batteries and two chargers included
Runtime (manufacturer claim)
Up to 60 minutes (manufacturer claim) with the 7.5Ah battery
Up to 60 minutes (manufacturer claim) with the included 8.0Ah battery
WinnerUp to 75 minutes (manufacturer claim) using two 40V 6.0Ah batteries
Up to 60 minutes (manufacturer claim) using two 10.0Ah batteries, based on mowing 1/3 of grass height at height setting 6
The LM2135SP's Select Cut system swaps between a Mulching, High Lift Bagging and Extended Runtime lower blade, letting one mower optimize for clippings, bagging suction or longest runtime instead of compromising on a single fixed blade.
Key advantages
Interchangeable Mulching, High Lift Bagging and Extended Runtime blades
Touch Drive self-propel with variable speed control in the handle
60-minute manufacturer-claimed runtime on the included 7.5Ah battery
5-year tool warranty, longest published here
What you give up
Weight not published by EGO for the LM2135SP
7.5Ah battery and charger are a premium bundle versus base kits from other brands
60-minute charge time is slower than Ryobi's comparable 2-battery setup
Best for: Buyers who want an interchangeable-blade system to fine-tune cut quality
The LM2146S pairs a 60V, 8.0Ah single-battery system with an 8-position height range down to 0.8 inches, the lowest minimum cut height in this group, plus a dedicated turbo leaf-pickup setting the other three brands do not publish.
Key advantages
60V, 8.0Ah single battery is the largest included capacity here
8-position height adjustment from 0.8 in to 4 in, the widest range listed
4-in-1 discharge including a dedicated turbo leaf-pickup mode
EZ Fold handles cut storage footprint by up to 70%
What you give up
64 lbs is the heaviest mower in this comparison
80-minute charge time is the longest published here
4-year warranty is shorter than EGO's 5-year tool warranty
Best for: Buyers who want the largest published cutting-height range and a turbo leaf-pickup mode
The RY40HPLM02 runs on two 40V 6.0Ah batteries for a manufacturer-claimed 75 minutes, the longest stated runtime in this group, and adds a Cut Command Center that displays remaining runtime and blade life plus a Turbo Mode button for tougher grass.
Key advantages
75-minute manufacturer-claimed runtime, the longest published here
Cut Command Center shows runtime and blade-life status at the handle
Turbo Mode button for an instant power boost in thick grass
Compatible with Ryobi's broader 40V battery lineup
What you give up
Charge time and warranty length not listed on Ryobi's own product page
79 lbs is the heaviest mower in this comparison per third-party spec data
Composite deck rather than the stamped steel deck used by Greenworks
Best for: Buyers who already own 40V Ryobi batteries or want a built-in runtime/blade-life display
The DCMWSP244U2 runs on two existing 20V MAX DeWalt batteries rather than a dedicated mower-only voltage, so households with DeWalt drills, saws or blowers can share batteries across tools, and its auto-sensing motor raises RPM automatically in thicker grass.
Key advantages
Shares 20V MAX batteries with DeWalt's wider power-tool lineup
21.5-inch deck is slightly larger than the 21-inch decks here
Auto-sensing technology raises RPM for thicker grass automatically
Fold-over handle cuts vertical storage footprint by up to 70%
What you give up
Weight and charge time not published by DeWalt for this model
Included DCB107 chargers are rated only 1.25A, slower than dedicated mower chargers
3-year warranty is shorter than EGO's 5-year tool warranty
Best for: Buyers already invested in the 20V MAX DeWalt battery platform for other tools
Every runtime figure in this guide, from EGO's 60 minutes to Ryobi's 75 minutes, is a manufacturer claim measured under a specific, often favorable, test condition: typically dry, level turf at a mid-height cutting setting with a fully charged battery. None of these brands publish independent third-party runtime results for the models compared here.
In practice, runtime drops with taller or thicker grass, wet clippings, uneven terrain, cold weather and use of a Turbo or high-power mode. A mower rated for 60 minutes on paper may deliver noticeably less on a yard with dense Bermuda or St. Augustine grass. If your lot is close to a mower's claimed per-charge acreage limit, consider a model with a swappable second battery or a dual-battery design like the Ryobi or DeWalt here.
Single vs. dual battery
Dual-battery mowers like the Ryobi and DeWalt let you keep a charged spare on hand; single-battery designs like EGO and Greenworks rely on one larger-capacity pack.
Turbo and high-power modes
Features like Ryobi's Turbo Mode increase cutting power on demand but will reduce the runtime figure published for standard mowing.
Terrain and grass type
Thick, tall or wet grass draws more current from the battery and will shorten runtime below the manufacturer's stated figure.
Practical context
Battery ecosystems and matching mower to yard size
A mower is rarely a standalone purchase once you factor in battery ecosystems. EGO's 56V ARC Lithium, Ryobi's 40V and DeWalt's 20V MAX platforms each power dozens of other outdoor and power tools, so if you already own batteries from one of these brands, buying a mower on the same platform means you can skip paying for included batteries on future tool purchases. Greenworks' 60V Pro system is also used across more than 75 tools per the manufacturer, but it is a separate ecosystem from the Greenworks 24V/40V consumer lines, so check voltage compatibility before assuming cross-tool battery sharing.
For yard size, treat published acreage figures as rough guidance tied to the runtime claim, not a hard limit. A yard with obstacles, slopes or trim-heavy edges will take the mower longer to cover than flat open turf of the same square footage, so buyers with 3/4-acre-plus lawns should lean toward the longer claimed runtimes or a spare battery rather than cutting it close.
Shared battery platforms
Buying within a battery ecosystem you already own (EGO, Ryobi 40V, or DeWalt 20V MAX) can reduce the cost of future cordless tool purchases.
Acreage claims are estimates
Manufacturer acreage figures assume continuous mowing on relatively flat, open terrain; obstacles and slopes will reduce effective coverage per charge.
Folding storage
All four mowers fold for vertical storage, which matters more in a garage or shed with limited floor space than in an open outbuilding.
Before you buy
Buying guide
Match voltage to runtime needs, not marketing
Higher voltage alone does not guarantee longer runtime; battery amp-hour capacity and motor efficiency matter just as much. Compare the full included battery spec (voltage x Ah), not just the headline voltage number.
Check what's actually included
Some listings for these mowers are sold as a bare tool without a battery or charger. Confirm the kit you are buying includes the battery and charger configuration referenced in this guide.
Consider deck material and height range for your lawn
Stamped steel decks (Greenworks) are typically more impact-resistant than composite decks (Ryobi), while a wider height-adjustment range gives more flexibility for seasonal grass height changes.
FAQ
Common questions
Are manufacturer runtime claims accurate for my yard?
They are a starting point, not a guarantee. Runtime claims are measured under specific test conditions and will typically be shorter in tall, thick or wet grass, on hilly terrain, or when using a high-power or turbo mode.
Can I use a battery from a different tool brand on these mowers?
No. Battery platforms are brand- and often line-specific (for example, EGO's 56V ARC Lithium only works with EGO 56V tools), so mower batteries are not interchangeable across these four brands.
Do these mowers need a separate purchase for mulching, bagging and side discharge?
No, all four models reviewed here include 3-in-1 or 4-in-1 functionality (mulching, bagging and side discharge, with Greenworks adding turbo leaf pickup) out of the box per their manufacturer listings.
How long do these batteries take to recharge?
Published charge times range from 60 minutes (EGO, with its Rapid Charger) to 80 minutes (Greenworks); Ryobi and DeWalt do not publish a charge time figure for the specific kits compared here.
How we compared
This guide is based on our comparison of manufacturer specifications and published product information, not on hands-on lab testing. Recommendations reflect specifications, trade-offs and buyer fit only — commissions and other commercial factors never influence rankings. Prices change, so we don't list them; check the retailer for the current price.
