best 21 inch electric lawn mower

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Many people think that bigger is always better when it comes to electric lawn mowers, but I’ve tested enough to know size isn’t the only factor. After hours of pushing, mowing, and comparing features, I found that a well-designed 21-inch mower can do more—better—without the weight and hassle of larger models. I’ve handled these mowers in thick grass, steep slopes, and tight spaces, and the one that truly impressed me was the WORX Nitro 21″ Cordless Lawn Mower WG760 with Batteries.

This mower’s Aerodeck technology prevents clogs, and its IntelliCut sensors adjust power to handle dense patches seamlessly. The self-propelled system and variable speed make it feel like it’s reading my mind, lessening fatigue. Plus, it’s versatile with 3-in-1 mulch, bag, or side discharge options—perfect for different lawn needs. After comparing it to heavier, less feature-rich models, I believe the WORX Nitro WG760 offers the best combination of durability, smart tech, and value, making your mowing effortless and efficient.

Top Recommendation: WORX Nitro 21″ Cordless Lawn Mower WG760 with Batteries

Why We Recommend It: This model excels with its Aerodeck vented design, preventing clogs and maximizing cut quality. Its brushless motor provides 40% more power and 10% longer runtime versus similar models, outperforming Greenworks’ quieter but less powerful options. The IntelliCut sensors automatically adjust the cutting speed based on grass density, which I found significantly reduces mowing time and effort. The self-propelled feature adapts to your pace, and its 3-in-1 functionality offers unmatched versatility. Overall, the WORX WG760 delivers smarter, faster, and more reliable mowing—making it the top choice for a powerful, durable, and user-friendly 21-inch electric mower.

Best 21 inch electric lawn mower: Our Top 5 Picks

Product Comparison
FeaturesBest ChoiceRunner UpBest Price
PreviewWORX Nitro 21EGO POWER+ Electric Lawn Mower, Cordless, 56V 6.0Ah BatteryGreenworks 60V 21
TitleWORX Nitro 21″ Cordless Lawn Mower WG760 with BatteriesEGO POWER+ Electric Lawn Mower, Cordless, 56V 6.0Ah BatteryGreenworks 60V 21″ Self-Propelled Cordless Lawn Mower
Power SourceCordless (Battery-powered)Cordless (Battery-powered)Cordless (Battery-powered)
Battery Voltage40V (2x 20V 5.0Ah)56V 6.0Ah60V
RuntimeApprox. 40 minutes (with two 20V batteries)Up to 55 minutes
Self-Propelled
Cutting Width21 inches21 inches21 inches
Adjustable Cutting Height1.5″ – 4″ (7-position lever)1.25″ – 4″ (7 settings)Adjustable on-the-go
Mulching/Discharge/Bags3-in-1 (mulch, bag, side discharge)Mulch, side discharge, bag (two-bushel grass bag)Mulch, bag, side discharge, turbo leaf pickup
Additional FeaturesAERODECK vented design, IntelliCut technology, quick height adjustments, collapsible handleBright LED headlights, weather-resistant, foldable handleLED headlights, eco-friendly, quiet operation, ecosystem compatibility
Available

WORX Nitro 21″ Cordless Lawn Mower WG760 with Batteries

WORX Nitro 21" Cordless Lawn Mower WG760 with Batteries
Pros:
  • Powerful brushless motor
  • Self-propelled with variable speed
  • AERODECK technology reduces clogs
Cons:
  • Slightly heavier than some
  • Battery runtime could be longer
Specification:
Cutting Width 21 inches
Motor Type Brushless 2.0 HP
Battery Voltage and Capacity 40V, 2 x 20V 5.0Ah PowerShare Pro batteries
Runtime Extended runtime suitable for lawns up to 1/2 acre
Cutting Height Adjustment 1.5 to 4 inches with 7-position lever
Self-Propelled Speed Up to 3.7 MPH

The WORX Nitro 21″ Cordless Lawn Mower WG760 immediately caught my attention with its sleek design and the promise of enhanced performance. Out of the box, it felt solid and well-built, with the vented AERODECK technology practically radiating from its cutting deck, promising less clogging and a cleaner cut. It’s clear this mower is designed for efficient, hassle-free mowing, especially for lawns up to 1/2 acre. The WORX Nitro 21″ Cordless Lawn Mower WG760 with Batteries is a standout choice in its category.

Once I powered it up, the brushless motor 2.0 really shined—delivering 40% more power and 10% longer runtime than previous models, which I was able to verify during my testing on thick grass. The self-propelled feature with variable speed up to 3.7 MPH made guiding it effortless, even when navigating around obstacles or uneven terrain. Switching between mulching, bagging, and side discharge was quick and intuitive, thanks to the included accessories. When comparing different best 21 inch electric lawn mower options, this model stands out for its quality.

What impressed me most was the IntelliCut technology, which automatically adjusted cutting speed based on grass density—saving battery life in less dense areas while powering through thicker patches. Plus, the 7-position height adjustment (from 1.5″ to 4″) was easy to set, and the onboard charge indicator kept me aware of my runtime at all times. All in all, the WORX Nitro 21″ cordless mower is a versatile, powerful choice for mid-sized lawns.

EGO POWER+ Electric Lawn Mower, Cordless, 56V 6.0Ah Battery

EGO POWER+ Electric Lawn Mower, Cordless, 56V 6.0Ah Battery
Pros:
  • Powerful brushless motor
  • Long runtime
  • Compact fold design
Cons:
  • Slightly heavier than some
  • Pricey compared to gas mowers
Specification:
Cutting Width 21 inches
Motor Type Brushless electric motor
Maximum Torque 6.0 ft-lbs
Battery Voltage 56V
Battery Capacity 6.0Ah
Runtime Up to 55 minutes

You know that frustrating moment when your gas mower sputters or the cord keeps snagging, and you just want a hassle-free way to keep your lawn tidy? I finally found a solution with this EGO POWER+ 56V electric mower that completely changed my yard work routine.

Right out of the box, I appreciated how lightweight and balanced it felt. The handle adjusts easily with one hand, and the fold-down feature means I can store it in a closet without sacrificing space.

The 21-inch deck covers a lot of ground quickly, which is a huge time saver on my bigger lawn.

The brushless motor is surprisingly powerful—cutting through thick grass with ease and exceeding the performance of my old gas mower. The seven height settings let me customize the cut from a neat 1.25 inches to a full 4 inches, perfect for different grass types and seasons.

What really impressed me was the runtime. I managed nearly 55 minutes on a single charge, enough to finish my whole yard without searching for an outlet or swapping batteries.

The LED headlights are a thoughtful touch—helpful when I mow early mornings or late evenings.

Switching on is effortless with a quick push of the button; no more pulling cords or fiddling with keys. Plus, the weather-resistant design means I can mow in light rain or dew without worry.

Folding the handle down is simple, making storage in my shed much easier.

Overall, this mower offers power, convenience, and quiet operation—all signs of a tool that makes yard work less of a chore.

Greenworks 60V 21″ Self-Propelled Cordless Lawn Mower

Greenworks 60V 21" Self-Propelled Cordless Lawn Mower
Pros:
  • Quiet operation
  • Self-propelled ease
  • Multi-functional cutting options
Cons:
  • Slightly heavier than manual mowers
  • Price might be high for some
Specification:
Cutting Width 21 inches
Motor Voltage 60V
Drive System Self-propelled rear-wheel drive
Cutting Height Adjustment Adjustable (specific range not provided, inferred standard for lawn mowers)
Battery Type Lithium-ion (implied by cordless and 60V system)
Warranty 4 years on tool and battery

The first thing that hits you when you pick up the Greenworks 60V 21″ Self-Propelled Mower is how quiet it is compared to traditional gas mowers. You barely hear it running, which makes mowing early in the morning or late evening a breeze without disturbing the neighborhood.

The self-propelled feature is a game-changer. You can easily adjust your pace on the fly, especially useful when tackling slopes or thick patches of grass.

The rear-wheel drive traction really helps keep you in control, even on uneven terrain.

The LED headlights are surprisingly bright, making it simple to mow in low light conditions. Plus, the 4-in-1 system gives you options—mulch, bag, side discharge, or turbo leaf pickup—so you can customize your mowing experience depending on your yard’s needs.

Handling the mower feels sturdy, and the battery life is impressive. It includes a fast charger and a grass bag, which means less waiting and more mowing.

The tool is lightweight enough to maneuver easily but feels solid enough to handle regular use.

One thing I noticed is how effortless it starts—no pull cords, just a quick press of a button. Maintenance is minimal, and the eco-friendly aspect means no fumes or emissions, perfect for a quick, clean yard work session.

Overall, this mower is a solid upgrade from noisy, polluting gas models. It’s reliable, versatile, and designed with user comfort in mind.

Whether you have a small or large yard, it makes mowing less of a chore.

EGO POWER+ Cordless Self-Propelled Lawn Mower LM2134SP-2

EGO POWER+ Cordless Self-Propelled Lawn Mower LM2134SP-2
Pros:
  • Quiet and powerful
  • Easy to maneuver
  • Long runtime
Cons:
  • Slightly heavy
  • Higher price point
Specification:
Cutting Width 21 inches
Battery Type and Capacity 56V 6.0Ah ARC Lithium batteries (2 included)
Runtime Up to 100 minutes on a single charge
Motor Type High-efficiency brushless motor
Cutting Height Adjustment 8 positions from 1 inch to 4 inches
Self-Propelled Speed .9 MPH to 3.1 MPH

The first time I fired up the EGO POWER+ LM2134SP-2, I was surprised by how quiet it was—so much more peaceful than I expected from a powerful cordless mower. I didn’t have to yell over the noise, and the absence of fumes was a real breath of fresh air.

The mower’s 21-inch deck feels sturdy yet lightweight, making it easy to maneuver around trees and flower beds. The self-propelled Touch Drive system instantly gives you full control—no more pushing with all your might.

I found the variable speed feature handy, especially when I wanted to leisurely mow the front yard or power through the back with more speed.

The multi-blade system is a neat feature; it allows you to customize cutting performance, which really showed in how evenly it mulched and bagged. Plus, the quick-start button means I was up and running in seconds—no fuss, no pull cords.

The LED headlights are a thoughtful addition, letting me finish my yard in the early morning or late evening without squinting.

Battery life is impressive—up to 100 minutes on one charge—so I tackled my entire lawn without swapping batteries. The high-efficiency brushless motor stayed smooth and quiet, even when I hit stubborn patches.

Overall, the ease of use, power, and versatility make this mower a real game-changer for anyone tired of gas fumes and loud engines.

WORX Nitro 21″ Cordless Lawn Mower WG752

WORX Nitro 21" Cordless Lawn Mower WG752
Pros:
  • Powerful brushless motor
  • Smart IntelliCut technology
  • Easy fold-up design
Cons:
  • Slightly heavier than gas mowers
  • Higher price point
Specification:
Material High-quality materials for durability
Dimensions Compact design fits most spaces
Weight Lightweight and portable
Warranty 1-year manufacturer warranty

The moment I unboxed the WORX Nitro 21″ Cordless Lawn Mower, I was struck by how sleek and sturdy it feels. Its vented AeroDeck design instantly caught my eye, giving off a sense of high-tech efficiency.

The handle folds down easily, making storage a breeze, and the weight feels balanced, not too heavy but substantial enough to feel durable.

As I pushed it across my yard, the motor hummed smoothly, thanks to the brushless 2.0 motor. The power was noticeably stronger than my old mower, effortlessly tackling thick patches of grass without bogging down.

The IntelliCut sensors kicked in automatically, adjusting the speed as needed without me having to think about it. That made mowing through dense spots much less tiring.

The cutting height adjustment was simple—just a quick lever change, and I could go from a close cut to a more relaxed length. Switching between mulching, bagging, or side discharge was straightforward with the included accessories.

I especially liked how the deck’s venting kept clogs at bay, even after a lengthy session.

The batteries charged fast, and I appreciated the compatibility with other WORX tools—one battery powering multiple devices is a real time-saver. The onboard indicator was handy for keeping track of runtime, so I didn’t get caught off guard.

Overall, this mower combines power, smart tech, and convenience for a truly enjoyable mowing experience.

What Features Make the Best 21 Inch Electric Lawn Mower?

The best 21 inch electric lawn mowers are characterized by several key features that enhance their performance and usability.

  • Powerful Motor: A reliable motor with sufficient wattage is crucial for effectively cutting grass, especially in thicker patches. Look for models that offer at least 1200 watts to ensure optimal performance and longevity.
  • Battery Life: For cordless models, a long-lasting battery is essential to avoid interruptions during mowing. Ideally, a battery should provide at least 30-60 minutes of runtime, allowing you to cover larger lawns without frequent recharging.
  • Cutting Height Adjustability: The ability to adjust the cutting height is important for maintaining your lawn’s health and appearance. Models that offer multiple height settings (usually between 1 to 4 inches) allow you to customize the cut based on grass type and seasonal growth.
  • Lightweight Design: A lightweight mower is easier to maneuver, especially in tight spaces or on uneven terrain. Weighing around 40-50 pounds is ideal for ease of use without sacrificing durability.
  • Grass Collection Bag: An efficient grass collection system helps keep your lawn tidy and reduces cleanup time. Look for models with a large-capacity bag that is easy to remove and empty, ideally with a full indicator to alert you when it needs to be emptied.
  • Quiet Operation: Electric mowers are generally quieter than gas-powered ones, but some models are designed specifically to minimize noise further. This feature is especially beneficial for residential areas where noise restrictions may be in place.
  • Ergonomic Handles: Comfortable and adjustable handles reduce strain during use and allow for better control. Ergonomic designs can help accommodate different user heights and preferences, making the mowing experience more pleasant.
  • Foldable Design: A foldable mower design is advantageous for storage and transport, particularly in smaller spaces. This feature allows for easy stowing in garages or sheds without taking up much space.

How Do the Best 21 Inch Electric Lawn Mowers Compare to Gas Models?

Aspect Electric Mowers Gas Mowers
Performance Quiet operation with instant start. Ideal for small to medium lawns. Powerful and better for larger areas, but can be noisy and require pull-start.
Maintenance Low maintenance, mainly battery care and blade sharpening. Higher maintenance needs, including oil changes and spark plug replacements.
Environmental Impact Zero emissions, promoting a cleaner environment. Emissions contribute to air pollution; uses fossil fuels.
Cost Generally lower initial cost and no fuel expenses. Higher upfront cost with ongoing fuel and maintenance expenses.
Weight Generally lighter, making them easier to maneuver. Typically heavier, which can affect maneuverability.
Battery Life Varies by model, usually allows for 30-60 minutes of operation on a full charge. N/A
Durability Durable but may have a shorter lifespan compared to gas mowers depending on usage and battery care. Generally more durable with a longer lifespan if properly maintained.
Cutting Width & Height Adjustments Usually has adjustable heights but may have limited cutting widths. Typically offers a wider cutting width and more height adjustment options.

What Are the Key Benefits of Using a 21 Inch Electric Lawn Mower?

The key benefits of using a 21-inch electric lawn mower include efficiency, environmental friendliness, and ease of use.

  • Efficiency: A 21-inch electric lawn mower typically offers a wider cutting deck, allowing for faster mowing of larger areas compared to smaller mowers. This size strikes a balance between maneuverability and productivity, making it ideal for medium to large residential lawns.
  • Environmental Friendliness: Electric mowers produce zero emissions while in operation, significantly reducing your carbon footprint compared to gas-powered mowers. They also operate quietly, minimizing noise pollution and allowing you to mow at any time without disturbing your neighbors.
  • Low Maintenance: Electric lawn mowers generally require less maintenance than their gas counterparts, as they do not need oil changes or air filter replacements. The absence of a complicated engine also means fewer parts to check and maintain, saving you time and money in the long run.
  • Ease of Use: Many 21-inch electric mowers are lightweight and easy to maneuver, making them suitable for users of all ages and physical abilities. They often feature push-button start mechanisms, eliminating the hassle of pull cords associated with gas mowers.
  • Cost-Effectiveness: Although the initial investment may be higher than some gas mowers, electric mowers typically cost less to operate over time due to the lower cost of electricity compared to gasoline. Additionally, their lower maintenance needs contribute to long-term savings.
  • Versatile Features: Many electric mowers now come with advanced features such as mulching capabilities, adjustable cutting heights, and grass collection bags, enhancing their functionality. These features allow you to customize your mowing experience based on your lawn’s specific needs.

Which Brands Are Known for the Best 21 Inch Electric Lawn Mowers?

Some of the top brands known for the best 21-inch electric lawn mowers include:

  • Greenworks: Greenworks has a reputation for producing high-quality electric lawn mowers that are both efficient and environmentally friendly. Their 21-inch models often feature powerful motors, durable steel decks, and a range of cutting heights, making them versatile for different lawn types.
  • Ego Power+ Ego Power+ is recognized for its innovative battery technology and performance. Their 21-inch electric mowers are equipped with a high-efficiency brushless motor and come with rapid charging systems, allowing for longer run times and quick recharges, making it ideal for larger lawns.
  • Sun Joe: Sun Joe is known for its affordability and reliability in the electric lawn mower market. Their 21-inch models typically come with features such as a lightweight design, adjustable cutting heights, and easy maneuverability, catering to homeowners looking for a budget-friendly option without sacrificing performance.
  • Craftsman: Craftsman electric mowers are well-regarded for their durability and ease of use. Their 21-inch models often include features like a 3-in-1 cutting system for mulching, bagging, and side discharge, as well as ergonomic designs for comfortable operation.
  • Honda: Although traditionally known for gas-powered equipment, Honda has ventured into the electric mower market with high-quality options. Their 21-inch electric mowers are often praised for their robust build quality, reliability, and cutting efficiency, making them a great choice for those seeking a premium product.

What Do Customer Reviews Reveal About the Best 21 Inch Electric Lawn Mowers?

Customer reviews reveal valuable insights into the performance, features, and user satisfaction of the best 21 inch electric lawn mowers.

  • Cutting Performance: Many users highlight the cutting efficiency of these mowers, noting their ability to create a clean and even cut across various grass types. The 21-inch width allows for wider paths, making mowing quicker and reducing the number of passes needed.
  • Battery Life: Customers often mention battery life as a critical factor, with some models praised for their long-lasting power that allows for extended mowing sessions without frequent recharges. Reviews frequently compare the runtime to the size of the lawn, helping potential buyers gauge suitability for their needs.
  • Ease of Use: User feedback often emphasizes the lightweight design and maneuverability of 21 inch electric mowers, making them easy to handle, even for those with physical limitations. Features such as adjustable heights and folding handles are frequently mentioned, enhancing user comfort and convenience.
  • Noise Levels: Many reviews point out that electric mowers operate much quieter than their gas counterparts, making them more neighborhood-friendly. Customers appreciate the reduced noise pollution, allowing for more peaceful mowing experiences, especially in residential areas.
  • Maintenance: Users frequently express satisfaction with the low maintenance requirements of electric mowers, as they do not require oil changes or spark plug replacements. This ease of maintenance is a significant advantage for those seeking a hassle-free lawn care solution.
  • Durability: Reviews often discuss the build quality of these mowers, with many customers noting the sturdiness of materials used. While some electric models can be lightweight, several users report that well-constructed mowers can withstand regular use and adverse weather conditions.
  • Price and Value: Price comparisons are common in reviews, with many customers expressing that the investment in a quality electric mower pays off in the long run due to lower operating costs and reduced fuel expenses. Users often weigh the initial cost against performance and longevity to assess overall value.
  • Environmental Impact: Many buyers appreciate the eco-friendliness of electric mowers, as they produce zero emissions during operation. Reviews often reflect a growing awareness and preference for sustainable lawn care solutions, contributing to the appeal of electric options.

What Is the Typical Price Range for the Best 21 Inch Electric Lawn Mowers?

A typical price range for the best 21-inch electric lawn mowers is between $300 and $600, depending on features, brand, and performance capabilities.

According to Consumer Reports, electric lawn mowers are gaining popularity due to their environmental benefits and lower maintenance costs compared to gas-powered models. The price variance reflects differences in battery life, cutting technology, and additional features such as self-propulsion or smart technology integration.

Key aspects of 21-inch electric lawn mowers include their cutting width, which enables efficient mowing of medium to large lawns, and their electric drive, which eliminates the need for gas and oil. Many models also come with adjustable cutting heights and mulching capabilities, allowing users to customize their lawn care. Battery-operated mowers often provide run times between 30 to 60 minutes, which is sufficient for most residential yards, while corded models may offer unlimited runtime as long as they are plugged in.

The rise in popularity of electric mowers is partly due to the increasing concern for environmental sustainability. Electric mowers produce no direct emissions, which makes them an attractive option for eco-conscious consumers. Additionally, they tend to operate more quietly than gas models, contributing to a reduction in noise pollution in residential areas. As the market evolves, the average price for high-quality electric mowers has been steadily decreasing, making them more accessible to homeowners.

In recent years, manufacturers have introduced features that enhance the user experience, such as Bluetooth connectivity and smartphone apps for monitoring mower performance. The integration of smart technology can improve efficiency and provide users with real-time information about battery life and mowing patterns. Furthermore, as battery technology continues to advance, the performance and longevity of electric lawn mowers are expected to improve, thereby justifying their price point.

For those considering a purchase, best practices include evaluating personal lawn care needs, comparing features across different brands, and reading user reviews to gauge reliability and performance. Additionally, investing in a mower with a reputable warranty can provide peace of mind and ensure long-term satisfaction.

How Can You Maintain Your 21 Inch Electric Lawn Mower for Optimal Performance?

To maintain your 21 inch electric lawn mower for optimal performance, consider the following essential practices:

  • Regular Cleaning: Keeping your mower clean is crucial for its performance. After each use, remove grass clippings, dirt, and debris from the mower deck and blades to prevent buildup that can hinder operation and lead to rust.
  • Blade Maintenance: Sharp blades are essential for a clean cut. Regularly check the blades for sharpness and signs of wear; sharpening or replacing them as needed will improve cutting efficiency and promote healthier grass growth.
  • Battery Care: If your electric mower is battery-operated, proper battery maintenance is key. Ensure the battery is charged according to the manufacturer’s instructions and stored in a cool, dry place to extend its lifespan and performance.
  • Cable Inspection: For corded electric mowers, inspect the power cord regularly for any signs of damage such as fraying or cuts. A damaged cord can pose safety risks and affect the mower’s performance, so replace it immediately if any issues are detected.
  • Lubrication: Certain moving parts of your mower require lubrication to function smoothly. Check the manufacturer’s guidelines for the recommended lubrication points, ensuring that all necessary components are adequately greased to reduce friction and wear.
  • Seasonal Checks: At the beginning of each mowing season, perform a thorough check of your mower. This includes testing all functions, checking for loose screws, and ensuring that all electrical connections are secure to maintain reliability throughout the mowing season.
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