Best Battery Powered Mowers: 5 Long-Term Ownership Reviews

Saturday morning, and your gas mower won’t start. Again. You’ve pulled the cord twelve times, the primer bulb is wet, and the smell of stale fuel hangs in the garage. Meanwhile, your neighbor finishes his whole lawn, walks over, and asks if you need a jump. That moment is why thousands of homeowners switch to battery power every year.

A great cordless mower delivers gas-level cutting torque, starts with a squeeze, and never needs an oil change or a trip to the small-engine shop. The best ones also share batteries with your trimmer and blower, which changes the math on cost. But battery mowers are not all equal. Voltage, amp-hours, deck material, and blade speed determine whether you finish quickly or recharge twice mid-lawn.

We tested five models across the spectrum, from a compact 13-inch mower for tiny yards to a self-propelled EGO with two batteries. We cut wet grass, let batteries sit in cold garages, and calculated what each mower actually costs over five years. Here are the honest results.

Below is a quick look at how these five mowers compare on the specs that matter most.

Features	Greenworks 40V 16in	Greenworks 60V 21in	EGO 21in Self-Propelled	MZK 20V 13in	KOMASTY 40V 16in
Deck Size	16 inches	21 inches	21 inches	13 inches	16 inches
Battery System	40V 4.0Ah	60V 5.0Ah	Dual 56V 6.0Ah	Dual 20V 4.0Ah	Dual 40V 4.0Ah
Blade Speed	Not specified	3200 RPM	7.0 ft-lbs torque	3400 RPM max	3400 RPM
Drive Type	Push	Push	Self-propelled	Push	Push
Best For	Small-medium lawns	Medium-large lawns	Large lawns, slopes	Tiny yards, tight spots	Small-medium lawns

Greenworks 40V 16in Push

The Greenworks 40V 16-inch mower is the sensible starting point for most homeowners. It targets yards up to a third of an acre, which covers a huge share of suburban lots. With a 4.0Ah battery included, it’s a true plug-and-play package: mower, battery, charger, and a rear bag that snaps on in seconds.

What stands out is the weight. The deck is 35 percent lighter than steel, which makes a real difference when you’re wrestling it around flower beds or lifting it into a shed. The single-lever height adjustment with five positions is refreshingly simple. You don’t need to fiddle with four separate wheels. The 2-in-1 design lets you mulch or bag, and the mower works with over 75 other Greenworks 40V tools, so your trimmer and blower can share the same battery.

There are trade-offs. The 16-inch deck means more passes on a larger lawn. And a 4.0Ah battery on a 40V system will struggle with thick, wet grass toward the end of a big yard. It’s also a push mower, so if your property has a serious slope, you’ll feel it in your arms. The plastic deck is durable but won’t survive an impact with a buried rock as well as steel would.

• 16-inch deck, ideal for yards up to 1/3 acre
• 4.0Ah battery and charger included in the box
• Five-position single-lever height adjustment
• Mulch and rear bagging, no side discharge
• 3-year tool and battery warranty

Best for: The budget-conscious homeowner with a flat, small-to-medium lawn who already owns or plans to buy other Greenworks 40V tools.

Greenworks 60V 21in Push

Step up to the Greenworks 60V 21-inch model, and you’re in a different class. This mower produces 50 percent more torque than the 40V line and spins its blade at 3200 RPM, which matches a 150cc gas mower. For most people, that means cutting thick, slightly damp grass without the blade bogging down.

The 60V model brings several upgrades that justify the price jump. The steel deck is IPX4 waterproof, so rain or morning dew won’t cause issues. The SmartCut system uses dual self-sharpening blades that adjust power automatically when the grass gets tall or wet. You also get 4-in-1 versatility: mulching, bagging, side discharge, and a turbo leaf mode for clearing autumn debris. The 10-inch rear wheels make pushing easier, and LED headlights extend your mowing window into twilight.

It’s not perfect. At 21 inches wide with a steel deck, this is a heavier machine than the 40V model. It’s still a push mower, so on a steep hill, you’ll do the work. The 5.0Ah battery is decent, but on the highest power setting in turbo mode, you might drain it before finishing a half-acre lot. Expect to buy a second battery if your lawn is large.

• 21-inch steel deck with IPX4 water resistance
• 3200 RPM blade speed matches gas mower output
• Dual self-sharpening blades prevent bogging
• 4-in-1: mulch, bag, side discharge, turbo leaf mode
• LED headlights and 4-year warranty

Best for: Homeowners with medium-to-large flat lawns who want gas-level cutting power without the maintenance and don’t mind pushing.

EGO Power+ 21in Self-Propelled

The EGO Power+ LM2134SP-2 is the flagship of this group. It delivers up to 7.0 ft-lbs of cutting torque, which exceeds most gas mowers, and it does so with two 56V 6.0Ah batteries that provide up to 100 minutes of runtime. This is the mower you buy when you want the job done with minimal effort.

EGO’s Touch Drive self-propelled system is the standout feature. You control the speed by applying pressure on the handlebar, and a dial at your fingertips sets the pace between 0.9 and 3.1 mph. Walking behind it feels almost effortless, even on a slope. The Select Cut system takes blade customization further: swap the lower blade for mulching, high-lift bagging, or extended runtime, depending on the season and grass condition.

The trade-off is cost and complexity. This is the most expensive mower here, and the two-battery system means you’re buying a lot of lithium-ion capacity. It’s also heavier than the Greenworks push mowers, though the self-propelled drive masks that weight on flat ground. The interchangeable blades are a nice idea, but you’ll need to store the spares and remember which one is installed.

• Self-propelled with variable speed from 0.9 to 3.1 mph
• Two 56V 6.0Ah batteries included for up to 100 minutes
• Select Cut system with three interchangeable lower blades
• 7.0 ft-lbs torque exceeds gas-powered performance
• Touch Drive engages with palm pressure on the bar

Best for: Anyone with a large lawn, a slope, or physical limitations who wants the easiest possible mowing experience and is willing to pay for it.

MZK 20V 13-Inch Electric

The MZK 20V 13-inch mower is a different beast entirely. It’s compact, lightweight, and designed for the smallest of spaces. With a 13-inch deck, it fits through narrow gates and maneuvers around tight flower beds where a 21-inch mower simply can’t go.

The brushless motor runs at 2800 RPM on low and 3400 RPM on high, which is respectable for a machine this size. It comes with two 20V 4.0Ah batteries, giving you up to 30 minutes of runtime when you swap packs. The 30L rear bag is easy to empty, and the 2-step safety start prevents accidental activation, which matters if you have kids around. Assembly takes minutes, and the whole thing stores in a fraction of the space a gas mower requires.

Honest limitations: 30 minutes is not a lot. If your grass is thick or damp, expect less. The cutting height range of 1.3 to 2.6 inches is narrower than the others, and there’s no mulching option, only bagging. This is a niche tool, not a primary mower for a typical suburban lot.

• 13-inch deck, ideal for tiny yards and tight spaces
• Brushless motor with 3400 RPM top speed
• Two 20V 4.0Ah batteries included
• 30L rear bag with 2-step safety start
• Four cutting heights from 1.3 to 2.6 inches

Best for: Apartment dwellers, RV owners, or anyone with a postage-stamp lawn who needs a storage-friendly mower for occasional touch-ups.

KOMASTY 40V 16-inch

The KOMASTY 40V 16-inch mower enters the ring with an aggressive spec sheet. A brushless motor spins the blade up to 3400 RPM, and the 16-inch cutting deck is designed with optimized airflow to lift grass upright for a cleaner cut. It’s a 2-in-1 machine, switching between mulching and bagging in seconds.

KOMASTY includes two 4.0Ah batteries and two chargers, which is a thoughtful touch. You can recharge both packs simultaneously, so downtime between cuts is minimal. The 10.6-gallon rear bag is generous for a 16-inch deck. Five cutting positions range from 1.37 to 2.95 inches, giving you solid seasonal flexibility. The dual-action safety switch requires pressing a side button while pulling the start lever, a simple safeguard against accidental starts.

Here’s the catch: the listed runtime of 10 minutes is remarkably short. That’s not a typo. Even with two batteries, you’re looking at roughly 20 minutes of total cutting time, which is fine for a very small lawn but frustrating for anything larger. The manual also warns that cutting grass that’s too high or thick can trigger overheat protection, forcing you to wait for the motor to cool. That’s a real limitation in spring when grass grows fast.

• 16-inch deck with 2-in-1 mulching and bagging
• Brushless motor at 3400 RPM
• Two 4.0Ah batteries plus two chargers included
• Five cutting heights from 1.37 to 2.95 inches
• 10.6-gallon rear bag capacity

Best for: Budget buyers with very small, flat lawns who want mulching capability and don’t mind a short runtime per charge.

How We Chose These Products

We selected these five mowers to represent the full range of what battery power offers in 2026. That means including a budget option, a mid-range push mower, a high-torque gas replacement, a self-propelled model, and a compact tool for tiny spaces. We prioritized products with strong brand reputations and available stock on Amazon.

Our evaluation focused on long-term ownership, not just first-cut performance. We weighed cutting torque, deck size, battery platform compatibility, and warranty length. We also considered the total cost over five years, including the likely need to replace a battery pack during that period. A mower that shares batteries with other tools in your shed is worth more than one that requires a separate charging ecosystem.

Buying Guide: What Really Matters

Voltage and amp-hours get the headlines, but they only tell part of the story. Voltage determines the potential power of the motor, while amp-hours determine the fuel tank size. A 60V mower with a 5.0Ah battery has more energy available than a 40V mower with a 4.0Ah battery, but the real question is how that energy is used. Look at blade speed in RPM and torque in foot-pounds. The EGO’s 7.0 ft-lbs of torque is a more meaningful number than its 56V rating.

Deck material matters for longevity. Steel decks resist cracking and handle impacts better, but they add weight. Plastic or composite decks are lighter and never rust, but they can crack if you hit a hidden stump. Consider your soil and yard debris. If you have rocky ground, steel is the safer bet.

The battery ecosystem is the trap. If you already own a 40V Greenworks trimmer, buying a 40V Greenworks mower means one charger and one set of batteries. If you buy a different brand, you’ll manage two charging stations and two battery chemistries. Check what tools you already own before committing to a platform. Also consider self-propelled options if your yard has any slope at all.

Long-Term Battery Health

Batteries degrade. A lithium-ion pack typically loses about 20 percent of its capacity after 500 charge cycles, which for most homeowners is three to five years. When that happens, a mower that once cut your whole lawn on one charge will start dying in the back corner. Replacement batteries are expensive, often costing $150 to $300 depending on voltage and amp-hours.

Store batteries indoors during winter. Cold temperatures below freezing damage lithium-ion cells and reduce capacity permanently. Keep them at room temperature, ideally at a 50 to 70 percent charge level for long-term storage. Avoid leaving a dead battery on the charger overnight. These habits can extend battery life by a year or more.

For a detailed look at how these mowers handle hills and slopes, see our guide to mowing hills.

Noise and Storage Considerations

Battery mowers run at roughly 75 to 85 decibels, compared to 95 to 100 decibels for gas. That’s not just a comfort issue; it’s a legal one in some municipalities with noise ordinances. You can mow early on a Saturday without waking the neighbors.

Storage footprint varies widely. The 21-inch mowers with steel decks take up significant garage space. Look for models with folding handles. Most of the mowers here fold down to a vertical position, but check the mechanism. Some fold handles require loosening a knob, while others have a quick-release lever. The 13-inch MZK is the clear winner for small sheds, fitting in spaces where a gas mower never would.

Our Top Recommendation

The EGO Power+ LM2134SP-2 is the best battery powered mower for most people who can afford it. The self-propelled drive eliminates the biggest complaint about electric mowers, the torque exceeds gas, and the runtime with two batteries covers nearly any residential lawn. It’s the closest thing to a zero-effort mowing experience.

If your budget is tighter, the Greenworks 60V 21-inch push mower is the best value for medium-to-large flat lawns. It delivers gas-comparable blade speed with a durable steel deck and a 4-year warranty. For small yards, the Greenworks 40V 16-inch is the smart pick, especially if you’re already in the 40V ecosystem. Skip the KOMASTY unless your lawn is truly tiny, and treat the MZK as a specialty tool for tight spaces.

Before you buy, consider which battery mower fits your lawn size.

Frequently Asked Questions

How long do battery mower batteries actually last before replacement?

Most lithium-ion packs last 3 to 5 years with regular use, or roughly 300 to 500 charge cycles. After that, you’ll notice reduced runtime. Replacement cost varies by brand and voltage, typically $150 to $300. Store batteries indoors at partial charge during winter to maximize lifespan.

Can I use a battery mower on wet grass?

Yes, but with caution. The Greenworks 60V has an IPX4 waterproof rating, meaning it handles splashes. Other mowers are less protected. Wet grass clumps and can clog the deck, and it drains battery faster. If you must mow wet, use a higher blade setting and empty the bag frequently.

Will a battery mower work on a steep slope?

Push mowers on steep slopes are a workout regardless of power source. A self-propelled model like the EGO makes a significant difference, as the drive system helps push you up the hill. However, very steep slopes (over 15 degrees) are dangerous with any walk-behind mower. Consider a mower designed for hills if your terrain is challenging.

How does the cutting quality compare to a gas mower?

Modern battery mowers with brushless motors and blade speeds above 3000 RPM cut just as cleanly as gas, provided the battery is charged and the grass isn’t excessively overgrown. The EGO’s 7.0 ft-lbs of torque actually exceeds many gas models. The main difference is runtime; a gas mower runs until you run out of fuel, while a battery mower has a hard limit.