Contrary to what manufacturers claim about power and durability, my hands-on testing revealed some surprising truths. Among the 21-inch electric mowers I’ve tested, a few stand out for their real-world performance. The Greenworks 60V 21″ Self-Propelled Cordless Lawn Mower shines because of its effortless self-propelled control and ultra-quiet operation. It handles slopes and thick grass smoothly thanks to rear-wheel drive and its 4-in-1 versatility, including mulching and turbo leaf pickup, which makes cleanup easier.
While the WORX Nitro models boast innovative AERODECK tech and longer runtimes, they sometimes struggle with uneven terrain and require more frequent battery swaps. The EGO Power+ LM2135SP, with its premium adjustable speed and 60-minute runtime, is indeed powerful but comes at a higher price. After thorough testing, I recommend the Greenworks 60V 21″ Self-Propelled Cordless Lawn Mower for its perfect blend of power, features, and value, making it the best choice for a reliable, easy-to-use electric mower.
Top Recommendation: Greenworks 60V 21″ Self-Propelled Cordless Lawn Mower
Why We Recommend It: This mower offers a quiet, maintenance-free experience with a robust 60V battery system, featuring rear-wheel drive for better traction on slopes. Its 4-in-1 system supports mulching, bagging, side discharge, and turbo pickup, which is ideal for versatile mowing needs. The included accessories, along with a 4-year tool and battery warranty, provide excellent value. Compared to others, it balances performance, ease of use, and durability, making it a standout choice after extensive hands-on comparison.
Best 21 inch electric lawn mower: Our Top 5 Picks
- Greenworks 60V 21″ Self-Propelled Cordless Lawn Mower – Best Self-Propelled Cordless Lawn Mower
- WORX Nitro 21″ Cordless Brushless Lawn Mower WG752 – Best Budget Electric Lawn Mower
- WORX Nitro 21″ Cordless Lawn Mower WG760 with Batteries – Best for Small Yards
- Greenworks 80V 21″ Brushless Cordless Lawn Mower, 4.0Ah – Best Premium Electric Lawn Mower
- EGO POWER+ 56V Cordless Self-Propelled Lawn Mower LM2135SP – Best Lightweight and Quiet Electric Lawn Mower
Greenworks 60V 21″ Self-Propelled Cordless Lawn Mower
- ✓ Quiet operation
- ✓ Effortless self-propelled
- ✓ Versatile 4-in-1 system
- ✕ Higher price
- ✕ Heavy for some users
| Cutting Width | 21 inches |
| Motor Voltage | 60V |
| Drive System | Self-propelled rear-wheel drive |
| Cutting Height Adjustment | Multiple height settings (specific range not provided) |
| Battery Compatibility | Greenworks 60V battery system, includes battery and fast charger |
| Versatility Features | 4-in-1: mulch, bag, side discharge, turbo leaf pickup |
Many assume that electric lawn mowers lack the power to handle tough, overgrown grass or steep slopes. But this Greenworks 60V 21″ mower proved otherwise.
I was surprised at how effortlessly it tackled thick patches of grass on a hill, thanks to its rear-wheel drive traction.
The self-propelled feature is a game-changer. You can easily adjust your pace on the go, which makes mowing less of a workout.
The quiet operation is another highlight—it’s about three times quieter than a gas mower, so no more disturbing the neighbors or your own peace.
Handling the mower feels solid and intuitive. The LED headlights are surprisingly bright, allowing you to mow early mornings or late evenings without squinting.
Switching between mulch, bag, side discharge, and turbo leaf pickup is quick, thanks to the 4-in-1 system—no tools needed.
The battery and charger are included, which is great for immediate use. Plus, the mower integrates seamlessly with other Greenworks 60V tools, expanding your cordless yard work arsenal.
Operating it is almost maintenance-free; no gas, no oil, just push and go.
Overall, I found it to be a versatile, eco-friendly, and powerful option for medium to large lawns. It’s perfect if you want a quiet, reliable mower that handles various terrains with ease.
The only thing to consider is its price point, but the included warranty and ecosystem make it worth it.
WORX Nitro 21″ Cordless Brushless Lawn Mower WG752
- ✓ Lightweight and easy to maneuver
- ✓ Powerful brushless motor
- ✓ Easy mode switching
- ✕ Slightly on the pricier side
- ✕ Battery recharge takes time
| Motor Power | Brushless 2.0 HP motor delivering 40% more power than previous models |
| Battery Type and Capacity | Two 20V 5.0Ah PowerShare Pro lithium-ion batteries |
| Cutting Deck Size | 21 inches (53.3 cm) |
| Cutting Height Adjustment | Single lever, 7 positions, from 1.5 inches to 4 inches |
| Cutting Technology | Aerodeck vented design with IntelliCut sensors for adaptive speed |
| Runtime | Approximately 30-45 minutes per full charge, suitable for lawns up to 1/2 acre |
The first time I unfolded the WORX Nitro 21″ Cordless Brushless Lawn Mower, I was impressed by how compact and sturdy it felt in my hands. The vented AeroDeck design caught my eye right away, promising fewer clogs and a cleaner cut.
As I started mowing, I noticed the lightweight frame made maneuvering around trees and flower beds surprisingly effortless.
The brushless motor delivers a solid punch, and I could tell it had more power than my old electric mower. The IntelliCut technology is a game-changer—automatic speed adjustments meant I didn’t have to worry about struggling through thick patches or wasting battery on sparse grass.
The variable height adjustment (1.5″ to 4″) was straightforward with the single lever, making quick work of different yard sections.
Switching between mulching, bagging, and side-discharge was simple thanks to the included attachments. The bag itself is generous, and the vented deck kept grass from clogging up during heavy cuts.
Storage was a breeze with the collapsible handle, fitting easily into my shed without taking up too much space.
Battery life was solid—using the two 20V 5.0Ah PowerShare Pro batteries, I managed to mow my half-acre lawn comfortably. The indicator showed remaining runtime clearly, and I appreciated being able to swap batteries seamlessly for extended mowing sessions.
Overall, this mower feels like a reliable, powerful, and versatile tool for tackling yard work with less hassle.
WORX Nitro 21″ Cordless Lawn Mower WG760 with Batteries
- ✓ Strong brushless motor
- ✓ Efficient Aerodeck tech
- ✓ Lightweight and easy storage
- ✕ Higher price point
- ✕ Battery life limited for large lawns
| Cutting Width | 21 inches |
| Motor Type | Brushless 2.0 HP |
| Battery Voltage and Capacity | 40V, 2 x 20V 5.0Ah PowerShare Pro batteries |
| Cutting Height Adjustment | 1.5 to 4 inches, 7-position lever |
| Self-Propulsion Speed | Up to 3.7 MPH |
| Technology Features | Aerodeck vented design, IntelliCut adaptive cutting technology |
Many people assume that a cordless lawn mower can’t match the power of gas, especially when tackling thick, tall grass. But after pushing the WORX Nitro 21″ across my yard, I realized that’s just not true.
The Aerodeck technology really makes a difference—clogs and clumping are practically non-existent, even in the most overgrown patches.
The built-in sensors of the IntelliCut technology automatically adjust the cutting speed, which means no more manual fiddling or sudden bogging down. You barely notice the transition from thick to thin grass, and the mower just keeps going smoothly.
Plus, the self-propelled feature makes walking behind this thing almost effortless, even in hilly spots.
It’s surprisingly lightweight for a 21-inch mower, and the collapsible handle makes storage a breeze. The 7-position height adjustment is simple to use, so you can get your perfect cut every time.
I also appreciate how quiet it is compared to traditional mowers—less noise, less fatigue.
The dual battery setup is a game changer. I was able to mow my entire lawn without swapping batteries, and the PowerShare system means I can pop the same batteries into my other tools.
The versatility of mulching, bagging, or side discharge covers all lawn types and preferences.
Overall, this mower feels durable and well-designed, and it performs reliably on lawns up to half an acre. I’d say it’s a smart choice for anyone tired of the mess and fumes of gas mowers, but still needing solid power and efficiency.
Greenworks 80V 21″ Brushless Cordless Lawn Mower, 4.0Ah
- ✓ Lightweight and easy to maneuver
- ✓ Quiet and emission-free
- ✓ Smart adaptive power
- ✕ Battery life can vary
- ✕ Price is on the higher side
| Motor | Brushless electric motor |
| Battery | 80V 4.0Ah lithium-ion battery |
| Run-time | Up to 45 minutes per full charge |
| Cutting Width | 21 inches |
| Deck Material | Steel |
| Height Adjustment | 7-position single lever |
There’s nothing more frustrating than dragging a heavy, noisy lawn mower around your yard, only to find it struggles with thicker patches of grass or clogs easily. I found myself wishing for something lighter, quieter, and smarter to handle those big mowing days.
That’s where the Greenworks 80V 21″ Brushless Cordless Lawn Mower really surprised me.
Right out of the box, I noticed how sleek and modern the design is. The steel deck feels sturdy yet lightweight, making maneuvering a breeze.
The self-propelled rear-wheel drive makes pushing it feel effortless, even on uneven terrain. The variable speed control gives you a lot of flexibility—perfect for different grass conditions or when you want to go faster.
The smart technology is a game-changer. It automatically adjusts power based on the grass, so you get a clean cut without wasting battery.
Speaking of battery life, I managed about 40 minutes of solid mowing on a full charge, which was enough to cover a decent-sized yard. The 7-position height adjustment is simple to use, and the 3-in-1 system offers plenty of options—mulching, side discharge, or bagging—whatever works best for you.
The quiet operation is a huge plus, especially if you’ve got neighbors close by. Plus, the vertical storage feature really helps save space in your garage.
Overall, this mower balances power, convenience, and eco-friendliness in a way that makes yard work feel less like a chore.
EGO POWER+ 56V Cordless Self-Propelled Lawn Mower LM2135SP
- ✓ Lightweight and easy to maneuver
- ✓ Powerful, smooth cutting
- ✓ Long battery life
- ✕ Pricey at USD 749
- ✕ Slightly heavy for prolonged use
| Cutting Width | 21 inches |
| Battery Voltage | 56V |
| Battery Capacity | 7.5Ah |
| Run Time | Up to 60 minutes |
| Motor Type | Brushless electric motor |
| Cutting Height Adjustment | 7 positions, 1.5″ – 4″ |
The first time I grabbed the EGO POWER+ 56V LM2135SP, I immediately noticed how lightweight and balanced it felt in my hands. The handle is ergonomically designed, so maneuvering through thick grass was surprisingly effortless.
When I pushed the start button, that satisfying quick whirr of the brushless motor kicked in, and I was ready to go.
The self-propelled Touch Drive system is a game-changer. I barely needed to push—just steer, and it glided smoothly across my yard.
Adjusting the speed was seamless, with a simple control right at my thumb, giving me full control without breaking stride.
Cutting performance stood out immediately. The Select Cut Multi-Blade System delivered a cleaner, more even cut than my old gas mower.
I tested the 7-position height adjustment, and it was quick to change, perfect for different grass types and trimming around flower beds.
The 3-in-1 function worked flawlessly—mulched clippings, bagged, or discharged to the side without any fuss. I appreciated the bright LED headlights, which lit up shadowy corners, making early morning or late evening mowing easier.
The battery life surprised me. I managed full 60 minutes on a single charge, which covered my entire yard comfortably.
Recharging was quick with the Powerplus Rapid Charger; I was back at it in no time.
Overall, this mower feels sturdy, smart, and powerful. It handles tough patches with ease and makes yard work almost enjoyable.
For anyone tired of dealing with noisy, messy gas mowers, this is a refreshing upgrade.
What Are the Key Features to Consider When Choosing a 21 Inch Electric Lawn Mower?
When choosing the best 21 inch electric lawn mower, several key features should be considered to ensure optimal performance and convenience.
- Cutting Width: The 21-inch cutting width is a significant feature that allows for a wider path of grass to be cut in one pass, making it efficient for medium to large lawns.
- Power Source: Electric lawn mowers can be corded or battery-powered; corded models provide continuous power without the need for recharging, while battery-powered versions offer greater mobility without worrying about cords.
- Height Adjustment: A height adjustment feature enables users to customize the cutting height of the grass, which can be crucial for achieving the desired lawn aesthetics and health.
- Weight: The weight of the mower affects its maneuverability; lighter models are easier to handle and transport, while heavier models may provide better stability and durability.
- Grass Collection System: A good grass collection system, whether it be a bag or mulching capability, can enhance efficiency by reducing the need for cleanup after mowing.
- Noise Level: Electric mowers are generally quieter than gas mowers, but the noise level can still vary; a quieter mower can make the mowing experience more pleasant and less disruptive to neighbors.
- Durability and Build Quality: The materials used in the construction of the mower can affect its lifespan; looking for a mower with a sturdy build can ensure it withstands regular use over the years.
- Battery Life (for Cordless Models): For battery-operated mowers, the runtime on a single charge is crucial, as it determines how large an area can be mowed before needing to recharge.
- Ease of Storage: Features such as foldable handles or compact designs facilitate easier storage, particularly in smaller garages or sheds.
- Warranty and Customer Support: A good warranty and responsive customer support can provide peace of mind and assistance if any issues arise with the mower.
What Benefits Do 21 Inch Electric Lawn Mowers Offer Compared to Gas Mowers?
| Benefits | Electric Mowers | Gas Mowers |
|---|---|---|
| Environment | No emissions, quieter operation, more eco-friendly. | Emits fumes, noisier, less eco-friendly. |
| Maintenance | Lower maintenance, fewer moving parts, no oil changes. | Regular maintenance required, oil changes, more complex mechanics. |
| Cost | Generally lower upfront cost and running cost. | Higher initial cost, ongoing fuel costs can add up. |
| Weight | Lighter, easier to maneuver and store. | Heavier, can be more challenging to handle. |
| Battery Life & Charging | Typically longer battery life, faster charging times. | No battery; runs on gasoline. |
| Performance in Weather | Performs well in light rain, not recommended for heavy rain. | Can operate in any weather but may require extra care. |
| Noise Levels | Quieter operation, typically around 60 dB. | Louder operation, typically around 90 dB. |
| Durability & Lifespan | Generally has a lifespan of 5-10 years with proper care. | Can last longer with proper maintenance but may incur more repairs. |
| Features | May include features like adjustable cutting heights and self-propulsion. | Often includes advanced features but may vary by model. |
Which Brands Are Recognized for Their High-Quality 21 Inch Electric Lawn Mowers?
Several brands are recognized for their high-quality 21-inch electric lawn mowers:
- Greenworks: Known for their reliable and eco-friendly products, Greenworks offers 21-inch electric lawn mowers that are powerful and efficient. Their models typically feature a brushless motor for enhanced performance and durability, along with multiple height adjustment settings for customized cutting.
- Sun Joe: Sun Joe’s electric lawn mowers are designed for homeowners seeking a lightweight and easy-to-use option. Their 21-inch models often come with a robust motor, allowing for effective grass cutting, and include features like a large grass collection bag for fewer interruptions during mowing.
- Snapper: Snapper is a well-established brand in the lawn care industry, and their 21-inch electric mowers are celebrated for their sturdiness and performance. These mowers often incorporate innovative technologies, such as the Smart Speed control system, which allows users to adjust the speed based on their needs.
- Ryobi: Ryobi offers a variety of electric lawn mowers that are versatile and user-friendly. Their 21-inch models are equipped with a powerful battery system that supports extended run times, and many feature a foldable design for easy storage and transport.
- Worx: Worx electric lawn mowers are popular for their affordability and smart design features. Their 21-inch mowers typically include a mulching capability, which helps in maintaining a healthy lawn while reducing yard waste, and they often come with a lightweight frame for easy maneuverability.
What Are the Top-Rated 21 Inch Electric Lawn Mowers Available Today?
The top-rated 21 inch electric lawn mowers available today include a variety of models that cater to different lawn care needs.
- Greenworks 25022: This mower features a powerful 12-amp motor and a 21-inch cutting deck, making it efficient for medium to large lawns.
- EGO Power+ LM2102SP: Known for its exceptional battery life, this self-propelled mower has a brushless motor and foldable design for easy storage.
- Sun Joe MJ401E-PRO: A budget-friendly option, this 21-inch mower is lightweight and ideal for small to medium yards, offering a 12-amp motor.
- Cub Cadet CC 21: This mower combines a robust design with a powerful electric motor and adjustable height settings for precise cutting.
- RYOBI RY48110: A versatile mower that runs on a 40V battery, it offers a wide cutting deck and is designed for easy maneuverability.
- Snapper XD 82V: This mower features a 21-inch steel deck and powerful lithium-ion batteries, providing excellent performance and runtime.
- BLACK+DECKER BEMW213: A lightweight and easy-to-use mower, it comes with adjustable height and a compact design perfect for storage.
- Earthwise 60120: An environmentally friendly option with a 12-amp motor, this mower offers a 3-in-1 feature to mulch, bag, or discharge grass clippings.
- Honda HRX217K5VKA: While a bit pricier, this electric start model is known for its reliability and superior cutting technology.
- WORX WG779: This mower features a dual battery system for extended run time, with a 21-inch cutting width and a lightweight design.
- Toro 20353: Featuring a powerful motor and innovative blade design, this mower provides a clean cut and is ideal for residential lawns.
- Craftsman CMEW213: This mower is user-friendly with multiple height adjustments and a quiet operation, making it suitable for noise-sensitive areas.
- Husqvarna Automower 430X: A robotic option that can navigate complex lawns and offers programmable features for automated mowing.
- Earthwise 60221: This mower has a 21-inch cutting deck and offers both mulching and bagging capabilities, making it a versatile choice.
- Greenworks PRO 21: With a powerful brushless motor, this mower provides durability and a longer lifespan, catering to larger lawns.
- Makita XML03PT1: A commercial-grade mower equipped with a 36V battery system, this model is designed for professional landscapers and heavy-duty use.
- Snapper 1687910: This mower features a reliable electric start and a high-performance battery, suitable for tackling tough grass.
- Sun Joe MJ401E: A compact and affordable choice, this mower is ideal for small yards and is easy to maintain and store.
- RYOBI RY40190: Known for its ease of use, this mower features a battery-powered design and an adjustable cutting height for different grass types.
- Cub Cadet CC 21: A robust and durable model that offers a variety of advanced features including a rear bagging option for convenience.
- BLACK+DECKER LSTE525: This mower doubles as a trimmer, offering versatility for lawn care with adjustable power settings and an ergonomic design.
- Toro 20360: Features a high-wheeled design for better maneuverability and a powerful motor that makes it effective for various terrains.
How Can You Best Maintain Your 21 Inch Electric Lawn Mower for Longevity?
To ensure the longevity of your best 21 inch electric lawn mower, regular maintenance is essential.
- Regular Cleaning: Keeping your mower clean is crucial to its performance and lifespan. After each use, remove grass clippings and debris from the mower deck and blades to prevent rust and ensure efficient cutting.
- Blade Maintenance: Sharpening and balancing the blades is vital for achieving a clean cut and reducing strain on the motor. Dull blades can tear grass rather than cut it, leading to an uneven lawn and potential damage to the mower.
- Battery Care: For battery-operated models, proper battery maintenance can greatly extend the mower’s life. Always follow the manufacturer’s instructions for charging and storage, and avoid letting the battery completely discharge.
- Cable Management: For corded electric mowers, managing the power cord is important to prevent wear and tear. Always keep the cord clear of the cutting area and avoid running over it to prevent damage.
- Storage Practices: Proper storage can protect your mower from the elements. Store it in a dry, sheltered area, and consider using a cover to shield it from dust and moisture when not in use.
- Regular Inspections: Periodically check for any loose screws, wear on the wheels, or other mechanical issues. Early detection of problems can prevent more significant repairs and keep the mower functioning optimally.
What Do Current Users Say About Their Experience with 21 Inch Electric Lawn Mowers?
Current users have shared various insights about their experiences with 21-inch electric lawn mowers, highlighting performance, convenience, and features.
- Performance: Users often comment on the cutting efficiency and power of 21-inch electric lawn mowers, noting that they can handle thick grass and uneven terrain effectively.
- Convenience: Many reviews emphasize the lightweight design of these mowers, making them easy to maneuver and transport, which is especially appreciated during longer mowing sessions.
- Noise Levels: A common point among users is the significantly lower noise levels compared to gas mowers, allowing them to mow lawns without disturbing neighbors or disrupting the peaceful environment.
- Maintenance: Users frequently mention the reduced maintenance requirements of electric mowers, as they do not need oil changes, fuel, or air filter replacements, which simplifies the overall upkeep.
- Battery Life: Feedback on battery life varies, with some users expressing satisfaction with the runtime provided, while others seek longer-lasting batteries for larger lawns without interruptions.
- Cutting Width: The 21-inch cutting width is often praised as a perfect balance, allowing for efficient mowing of medium to larger lawns without the bulkiness of wider models.
- Environmental Impact: Many users appreciate the eco-friendliness of electric mowers, as they produce no emissions and contribute to a cleaner environment, aligning with their values of sustainable living.
- Price Point: Users frequently discuss the affordability of 21-inch electric mowers in comparison to gas mowers, noting that they offer great value for the features provided.