Tired of noisy, high-maintenance gas lawn mowers? The Greenworks 60V 21″ Self-Propelled Cordless Lawn Mower (Model MO60L424) offers a powerful, eco-conscious solution that rivals traditional gas models without the mess or fumes. Featuring a dual 60V battery system, brushless motor, and convenient self-propulsion, this cordless mower is designed to handle medium to large lawns with ease. In this review, we explore why thousands of homeowners are making the switch—and whether this mower lives up to its impressive 4.4-star Amazon rating.

Power and Performance Specifications

The Greenworks 60V 21″ Self-Propelled Cordless Lawn Mower stands out in the cordless mower market with its exceptional power specifications. At the heart of this machine is a high-efficiency brushless motor that delivers an impressive 3,200 RPM, providing sufficient cutting power for even the most challenging lawn conditions.

The mower comes equipped with dual 4.0Ah 60V lithium-ion batteries, strategically designed to power through up to 60 minutes of continuous operation. This runtime is sufficient to cover properties up to 3/4 acre, making it an ideal solution for medium to large residential lawns without the need for recharging mid-task.

A notable feature is the self-propelled rear-wheel drive system with adjustable speed settings, allowing users to customize their mowing pace according to terrain conditions and personal preference. This self-propulsion technology is particularly valuable when navigating slopes or areas with thicker grass.

The cutting system offers remarkable flexibility with 7 height positions ranging from 1.5″ to 4″, enabling precise lawn maintenance regardless of grass type or desired finish. Additionally, the 3-in-1 functionality accommodates various lawn care approaches:

• Mulching: Cuts grass clippings into fine particles that decompose quickly, returning nutrients to your lawn
• Bagging: Collects clippings in the included grass catcher for a clean, manicured appearance
• Side discharge: Efficiently handles longer grass by expelling clippings to the side

Battery System and Runtime Analysis

The Greenworks mower implements a sophisticated dual battery port design with automatic switching capability. This intelligent system transitions seamlessly between power sources without interruption, eliminating downtime during operation. When one battery depletes, the mower automatically draws power from the second battery, ensuring continuous operation.

Both batteries can be simultaneously recharged using the included dual-port rapid charger, minimizing wait times between mowing sessions. The onboard battery power indicator provides real-time feedback on remaining charge, allowing users to plan their mowing strategy accordingly and avoid unexpected power loss.

Runtime performance varies based on several factors:

• Grass conditions: Thicker, wetter grass requires more power and reduces runtime
• Cutting height: Lower height settings demand more energy than higher settings
• Terrain: Uphill mowing and self-propulsion use additional battery capacity

A significant advantage of this battery system is its cross-compatibility with other Greenworks 60V tools. This ecosystem approach allows homeowners to expand their cordless tool collection while maximizing battery investment.

User Experience and Operation

Operation simplicity begins with the one-touch start button, eliminating the frustration of pull cords and complex startup procedures common with gas mowers. This electric ignition system ensures consistent, reliable starting regardless of weather conditions or temperature.

The self-propelled drive system features an adjustable speed control mechanism, allowing users to set their preferred pace between 1.1 MPH and 2.9 MPH. This customization ensures comfortable operation for users of varying heights, ages, and physical capabilities.

Ergonomic considerations extend to the handle design, which incorporates cushioned grips and adjustable height positions to reduce operator fatigue during extended mowing sessions. The natural positioning minimizes strain on wrists, shoulders, and back.

Initial assembly requires minimal effort, typically taking less than 15 minutes to complete with basic household tools. The mower arrives mostly assembled, requiring only the installation of the handle system and grass collection bag.

Maintenance requirements represent perhaps the most dramatic improvement over gas alternatives:

• No oil changes required
• No spark plugs to replace
• No air filters to clean or change
• No winterization procedures needed

The only regular maintenance involves keeping the blade sharp and occasionally cleaning the underside of the deck to prevent grass buildup.

The vertical storage capability transforms the mower’s practicality between uses. By simply folding the handles and standing the mower upright, users can reclaim valuable floor space in garages or storage areas.

Environmental and Economic Benefits

The zero-emission operation of the Greenworks mower represents a significant environmental advantage over gas alternatives. A typical gas mower produces the equivalent emissions of 11 cars in just one hour of operation, making this electric alternative an impactful choice for environmentally conscious homeowners.

Noise pollution reduction delivers both environmental and social benefits. The significantly quieter operation—approximately 25-30% quieter than comparable gas models—allows for mowing during more flexible hours without creating neighborhood disturbances.

From an economic perspective, the initial investment in the Greenworks system is offset by substantial long-term savings:

• Fuel costs eliminated: Saving approximately $30-50 per season on gasoline
• Maintenance costs reduced: No oil changes, tune-ups, or carburetor cleaning, saving $70-100 annually
• Part replacement minimized: No spark plugs, air filters, or fuel filters to replace

Battery lifecycle considerations remain favorable, with the included lithium-ion batteries typically maintaining 80% capacity after 500 charge cycles—equivalent to several years of regular use for most homeowners. Replacement batteries, when eventually needed, cost less than the accumulated maintenance expenses of gas alternatives over a similar timeframe.

Energy consumption calculations reveal that the mower uses approximately 1.5 kWh per mowing session, translating to an operating cost of just $0.15-0.20 per use at average electricity rates—a fraction of the cost of gas operation.

Greenworks provides a 4-year limited warranty on both the mower and batteries, significantly exceeding industry standards and demonstrating confidence in product durability and performance.

Real Customer Experiences and Insights

The 4.4-star rating from over 12,000 Amazon reviews provides substantial validation of this mower’s real-world performance. Analysis of these reviews reveals consistent patterns of customer satisfaction across several key dimensions.

Common criticisms, while less frequent, typically center around:

• Weight: Some users note the mower is heavier than expected, though the self-propulsion mitigates this concern
• Initial cost: The upfront investment is higher than basic gas models, though long-term economics favor the electric option
• Wet grass performance: Extremely wet conditions can challenge the motor, though this is true of most mowers

Long-term reliability reports from customers who have used the mower for multiple seasons generally indicate sustained performance without significant deterioration. Many reviewers specifically mention the durability of the batteries, noting consistent runtime even after two or three years of regular use.

Comparison with competitor models often highlights the Greenworks mower’s superior runtime and cutting power in the cordless category. The dual-battery system receives particular praise when compared to single-battery alternatives that require mid-job battery swaps.

Experienced users offer several valuable tips for maximizing performance:

• Mow when grass is dry for optimal efficiency
• Maintain a consistent mowing schedule rather than allowing grass to become excessively tall
• Clean the underside of the deck after each use to prevent rust and maintain airflow
• Store batteries at approximately 50% charge if not using the mower for extended periods
• Alternate between mulching and bagging depending on grass conditions and growth rate

These real-world insights complement the technical specifications, providing prospective buyers with a comprehensive understanding of both the capabilities and practical considerations of the Greenworks 60V 21″ Self-Propelled Cordless Lawn Mower.

The Verdict: Is This Greenworks Model Worth Your Investment?

If you’re looking for a quieter, cleaner, and more efficient way to maintain your lawn, the Greenworks 60V Self-Propelled Cordless Mower delivers where it counts. Its dual-battery power, smart features, and low-maintenance design make it a compelling alternative to gas-powered equipment. While the initial price tag may be higher, the long-term savings on fuel, repairs, and time are well worth the investment. For homeowners who value performance without the noise and hassle, this mower is a smart, sustainable upgrade.