Best Cordless Lawn Mower in 2026: Tested for Real Yards

The extension cord snaked across the driveway again. You untangled it from the bushes, dodged it around the flower bed, and nearly tripped over it for the third time this month. Gas mowers bring their own headaches—the smell, the pull-start that never cooperates, the trip to the station with a red plastic can. Cordless mowers solve all of that, but picking the wrong one means a dead battery halfway through the lawn.

The market has settled into a few clear categories. Voltage matters, but so does the battery ecosystem behind it. A 40V mower handles a postage-stamp yard with ease. A 60V or 80V unit tackles a third of an acre without breaking a sweat. You also need to weigh push versus self-propelled, deck width against storage space, and whether mulching actually works or just leaves clumps.

We spent time comparing five cordless mowers that cover the spectrum—from a lightweight 17-inch push model to a self-propelled 21-inch machine with serious torque. The right choice depends on your yard size, your physical comfort, and whether you already own tools in a particular battery family. Below you will find a direct comparison, followed by detailed reviews to help you decide.

Here is a quick look at how the five contenders stack up on the specs that matter most.

Features	Casince 17-Inch	Greenworks 40V	Greenworks 60V	Greenworks 80V	Worx WG745
Deck Size	17 inches	16 inches	21 inches	21 inches	17 inches
Battery System	Two 20V 4.0Ah	One 40V 4.0Ah	One 60V 5.0Ah	One 80V 4.0Ah	Two 20V 4.0Ah
Drive Type	Push	Push	Push	Self-Propelled	Push
Cutting Actions	Bagging only	Mulch, Bag	Mulch, Bag, Side	Mulch, Bag, Side	Mulch, Bag
Best For	Small yards	Compact lawns	Medium lawns	Sloped, larger lots	Small-medium yards

Casince 17-Inch Cordless Mower

The Casince 17-inch walk-behind is built for the homeowner with a tidy, modest lawn—think 2,000 to 4,000 square feet of grass, not a pasture. It suits renters or first-time buyers who want a simple, storable machine without investing in a multi-tool battery platform. If you have a narrow gate or a cramped shed, the 14 kg (roughly 31 pounds) body is easy to lift onto a shelf or hang on a wall hook.

Its defining trait is the dual-battery setup. Two 20V 4.0Ah packs feed a brushless motor that spins the blade at 3000 RPM, producing up to 1200W of output. That translates to honest cutting power for regular residential grass. The 17-inch deck is wider than the typical budget 16-inch model, which means slightly fewer passes across your lawn. Six height settings between 1 and 3 inches give you fine control for seasonal changes—cutting lower in spring, higher during summer heat.

You will trade some convenience for that low price. The 50L collection bag is generous, but the mower lacks a mulching option or side discharge. You are committed to bagging clippings, which is fine if you compost or have curbside yard waste pickup. The runtime claim of up to 40 minutes holds true on thin, dry grass; thick St. Augustine or wet spring growth will drain the batteries closer to 25 minutes. It is not self-propelled, so expect to do the pushing yourself on any slope.

• 17-inch steel cutting deck with six height positions (1 to 3 inches)
• Two 20V 4.0Ah batteries provide up to 40 minutes of runtime
• Brushless motor spins blade at 3000 RPM for steady cutting
• 50L rear collection bag reduces trips to the compost pile
• One-button start with a pull-bar safety mechanism

Best for: The budget-conscious buyer with a flat, small lawn who wants a lightweight machine that stores easily.

Greenworks 40V 16-Inch Push

The Greenworks 40V 16-inch push mower is the standard answer for the classic suburban lot up to a third of an acre. It is the mower you recommend to a friend who is tired of borrowing a neighbor’s gas beater. The 40V platform is Greenworks’ most accessible ecosystem, with over 75 compatible tools including trimmers and blowers. Buying this mower means you can later add a leaf blower that shares the same battery.

Weighing in 35% less than a comparable steel-deck gas mower, this unit is genuinely easy to maneuver. The single-lever height adjustment lets you change cutting height in one motion—no fiddling with four separate levers at each wheel. The 2-in-1 system offers both rear bagging and mulching. The mulching function works adequately on dry grass, returning fine clippings that break down quickly. A 4.0Ah battery delivers enough juice for roughly 30 to 40 minutes of cutting, depending on conditions.

The trade-off here is the deck size. At 16 inches, it is the narrowest in this lineup. You will make more passes on a larger yard, which eats into runtime. The plastic deck is durable and rust-proof, but it lacks the premium feel of steel. For a yard close to a third of an acre, you may need a second battery to finish in one session, especially if the grass is thick.

• 16-inch deck with 5-position single-lever height adjustment
• 40V 4.0Ah battery cuts up to 1/3 acre per charge
• 2-in-1 design supports rear bagging or mulching
• Lightweight build is 35% lighter than steel deck mowers
• Backed by a 3-year limited tool and battery warranty

Best for: Owners of small, flat yards who want a dependable entry into the Greenworks 40V battery family.

Greenworks 60V 21-Inch Push

Step up to the Greenworks 60V 21-inch if your lawn is medium-sized and your grass gets thick. This mower delivers gas-like power with 50% more torque than 40V models and a blade speed of 3200 RPM, which is right in line with a 150cc gas engine. It handles damp grass without bogging down, a real advantage during spring rains when your neighbors are waiting for their lawns to dry out.

The SmartCut system is the standout feature here. Dual blades automatically adjust power based on grass conditions. Hit a patch of tall, wet growth and the mower senses the load, increasing torque to keep the blade spinning. This is not a gimmick—it genuinely prevents the frustrating stall-and-restart cycle common on lesser electric mowers. The 4-in-1 versatility covers mulching, bagging, side discharge, and a turbo leaf mode for clearing autumn debris. An IPX4 waterproof rating means light rain or morning dew will not damage the electronics.

You pay for that capability in weight. This is a push mower, not self-propelled, and the steel deck plus 5.0Ah battery makes it noticeably heavier than the 40V model. Pushing it up a slope requires effort. The LED headlights are a nice touch for evening sessions, but you will likely finish before dark if you start at a reasonable hour. The 60V batteries are proprietary to the higher-end Greenworks line, so they cost more to replace than the 40V packs.

• 21-inch steel deck with IPX4 water resistance
• 60V 5.0Ah battery provides extended runtime for medium lawns
• SmartCut dual blades self-sharpen and auto-adjust power
• 4-in-1 system: mulch, bag, side-discharge, and turbo leaf mode
• 3200 RPM blade speed matches 150cc gas mowers

Best for: Homeowners with a quarter to half-acre lot who want gas-level cutting power without the maintenance.

Greenworks 80V 21-Inch Self-Propelled

The Greenworks 80V self-propelled mower is the answer for anyone whose yard has a slope or who simply does not want to break a sweat before work. The rear-wheel drive system with variable speed control does the heavy lifting. You set the pace with a lever, and the mower pulls itself forward. On a hill, it maintains traction where a front-wheel drive unit would spin its tires.

This is the most powerful mower in the Greenworks lineup we tested. The 80V 4.0Ah battery feeds a brushless motor that produces substantial torque, easily slicing through tall grass and weeds. The 21-inch steel deck covers ground efficiently, and the mower cuts up to half an acre on a full charge under normal conditions. It operates about three times quieter than a comparable gas mower, so you can mow early on a Saturday without angering the neighbors. The LED headlight extends your usable hours into the evening.

The drawbacks are practical. The 80V battery is the most expensive in Greenworks’ range to replace, and the mower itself carries a premium price. It is also heavy—the self-propelled drive adds mass, making it awkward to lift over curbs or into a raised shed. The variable speed control takes a session or two to dial in; too fast and you miss clippings, too slow and you waste battery. For a flat, small yard, this is overkill. For a sloped half-acre, it is a relief.

• 21-inch durable steel deck with rear-wheel drive
• 80V 4.0Ah battery supports cutting up to half an acre
• Variable speed self-propelled control for slopes and tough terrain
• Brushless motor runs quieter and lasts longer than gas engines
• Integrated LED headlight for low-light mowing

Best for: Owners of larger, sloped properties who want self-propelled convenience and are already invested in the Greenworks 80V platform.

Worx 40V 17-Inch WG745

The Worx WG745 fills the gap between budget push mowers and premium self-propelled models. It is a 17-inch 2-in-1 machine aimed at yards up to a quarter acre. The dual 20V battery system is clever—each battery is a standard Worx PowerShare pack, the same ones used in their drills and saws. If you already own Worx tools, this mower slides right into your existing setup.

Worx packs its latest brushless motor 2.0 into this model, which delivers 40% more cutting power and 10% longer runtime than the previous generation. The Intellicut technology automatically adjusts blade speed based on grass thickness. When you hit a dense patch, the motor spins faster; on thin grass, it slows down to save battery. This extends runtime in real-world conditions, letting you finish a typical quarter-acre lawn on a single pair of charges. At 40 pounds fully assembled, it is light enough for most people to push comfortably.

The compact 17-inch deck is the main limitation. It takes more passes to cover the same ground as a 21-inch mower, which eats into the runtime advantage. The bag is smaller than the Casince’s 50L unit, so expect more frequent stops to empty it. Worx lists this as 2-in-1, meaning you can mulch or bag, but there is no side discharge option for leaves. The scarcity of stock suggests demand is high, so you may need to check availability.

• 17-inch deck with two 20V 4.0Ah PowerShare batteries
• Brushless motor 2.0 provides 40% more cutting power
• Intellicut adjusts blade speed to grass conditions
• Weighs 40 pounds fully assembled for easy handling
• 2-in-1 mulching and rear bagging capabilities

Best for: Existing Worx PowerShare tool owners who want a lightweight, smart mower for a small to medium flat yard.

How We Chose These Products

We focused on real-world usability rather than spec-sheet bragging. Each mower was evaluated on how it handles typical residential grass conditions—dry summer growth, damp spring clippings, and the occasional overgrown patch. We prioritized models with brushless motors for longevity and efficiency, and we looked closely at the battery ecosystem behind each brand. A mower is only as good as its replacement battery cost and availability three years down the road.

We also considered physical ergonomics. Deck width affects how many passes you make. Weight affects how easily you can push, lift, and store the unit. Self-propelled drive matters on slopes. The five picks here represent the spectrum of what most homeowners need, from the smallest lot to a challenging half-acre. We excluded corded models entirely and focused only on lithium-ion battery systems that offer genuine freedom of movement.

Buying Guide: What Really Matters

Voltage tells you the ceiling of a mower’s power, but amp hours (Ah) tell you how long it can sustain that power. A 40V 4.0Ah battery holds roughly 160 watt-hours of energy. A 60V 5.0Ah pack holds about 300 watt-hours. For a small flat lawn, 40V is plenty. For thick grass or a larger area, step up to 60V or 80V. Do not ignore the battery ecosystem—if you already own a drill or trimmer from a brand like Greenworks or Worx, buying a mower that shares those batteries saves you money on spares.

Push versus self-propelled is a comfort decision, not a status symbol. If your yard is flat and under 5,000 square feet, a push mower is fine and costs less. If you have a hill or a yard over a quarter acre, self-propelled rear-wheel drive is worth the extra money. You will use less energy, finish faster, and avoid the temptation to skip mowing because it is exhausting. Deck material matters too: steel is durable and heavy, while composite or plastic decks are lighter and never rust.

Cutting height adjustments and mulching capability are the features you will use every single mow. A single-lever height adjust is vastly more convenient than four separate wheel levers. Mulching requires a dedicated blade and sufficient motor torque; a weak motor just leaves clumps of grass on top of the lawn. Look for a mower with at least 3,000 RPM blade speed if you plan to mulch regularly. Check the current price on Amazon for each model, as deals shift throughout the season.

Our Top Recommendation

The Greenworks 60V 21-inch push mower is our top pick for most homeowners. It strikes the best balance between cutting power, deck width, and price. The SmartCut self-sharpening blades handle thick and wet grass without bogging down, a feature that genuinely separates it from cheaper models. The 21-inch deck covers ground efficiently, and the 60V battery provides enough runtime for a typical quarter-acre lot. It is not self-propelled, but the power delivery is smooth enough that pushing it on flat ground is not a chore.

If your yard is sloped or larger than half an acre, spend the extra money on the Greenworks 80V self-propelled model. The rear-wheel drive and variable speed control make a tangible difference on hills. If you are on a strict budget with a tiny lawn, the Casince 17-inch is a capable, lightweight starter mower. For those already in the Worx ecosystem, the WG745 is a smart, compact addition. Each of these mowers has a specific job; match the tool to your grass and you will not be disappointed.

Frequently Asked Questions

How long do cordless mower batteries actually last before they need replacing?

Most lithium-ion batteries in this category are rated for 500 to 800 charge cycles. That translates to roughly three to five seasons of weekly mowing, depending on your yard size. You will notice a gradual decline in runtime starting around the second season—a 40-minute mow might drop to 30 minutes. Replacement batteries are the hidden cost of cordless ownership, so check the price of a spare pack before you commit to a brand. A mower that is cheap but uses a proprietary, expensive battery can cost you more over three years than a premium model with a shared ecosystem.

Can I mow wet grass with a cordless mower?

Yes, but it is not ideal. Wet grass clumps together, clogging the deck and the collection bag. It also demands more torque from the motor, which drains the battery faster. The Greenworks 60V and 80V models handle damp conditions better than most due to their higher torque and IPX4 water resistance. However, even these will struggle with soaking wet, heavy grass. Wait until the dew dries if you can. If you must mow wet, use a higher cutting height and empty the bag more frequently.

Are cordless mowers as powerful as gas mowers?

Modern high-voltage cordless mowers—60V and above—are close, and in some cases equal, to entry-level gas mowers. The Greenworks 60V spins its blade at 3200 RPM, which matches a typical 150cc gas engine. The difference is in sustained load. A gas engine will run at full power until it runs out of fuel. A cordless mower may throttle back slightly as the battery depletes to protect the cells. For routine weekly cutting, you will not notice a difference. For clearing overgrown brush or thick, wet sod, gas still holds a slight edge.

What maintenance does a cordless mower need?

Far less than gas, but not zero. You need to keep the blade sharp—sharpen it once a year or after every 25 hours of use. A dull blade tears grass instead of cutting it, leaving a brown, ragged edge. Clean the underside of the deck after each use to prevent grass buildup, which reduces airflow and cutting efficiency. Check the blade bolt for tightness periodically. Store the batteries indoors during winter at a partial charge, around 50%, to maximize their lifespan. Unlike gas mowers, there is no oil to change, no spark plug to replace, and no fuel to stabilize.