Greenworks 40V 20-Inch Cordless Lawn Mower

Cordless lawn mowers have come a long way, and for many homeowners they now offer the perfect balance between power, convenience, and low maintenance. The Greenworks 40V 20-Inch Cordless Lawn Mower is one of the most popular battery-powered models in its class, designed to handle medium-sized lawns without the noise, fumes, or upkeep of gas mowers.

As someone who has tested both gas and cordless lawn mowers across different yard sizes and grass conditions, the Greenworks 40V mower consistently stands out for its reliable cutting performance, quiet operation, and ease of use. This review breaks down real-world performance, battery life, build quality, and whether this mower is the right choice for your lawn.

What Is the Greenworks 40V 20-Inch Cordless Lawn Mower?

The Greenworks 40V 20-Inch Cordless Lawn Mower is a battery-powered push mower designed for residential lawn care. It runs on Greenworks’ 40V lithium-ion battery system and features a 20-inch steel cutting deck, making it suitable for small to medium yards.

It’s commonly used for:

·        Regular lawn maintenance

·        Cutting residential grass areas

·        Eco-friendly, low-noise mowing

·        Homeowners transitioning away from gas mowers

Greenworks is a well-established brand in battery outdoor power equipment, trusted by homeowners for reliable cordless tools.

Key Features of the Greenworks 40V 20-Inch Cordless Lawn Mower

·        40V lithium-ion battery power

·        20-inch steel cutting deck

·        Cordless, gas-free operation

·        Single-lever height adjustment

·        Rear bagging and mulching capability

·        Foldable handle for easy storage

·        Quiet, low-vibration performance

Cutting Performance & Power

The most common concern with a cordless lawn mower is whether it delivers enough cutting power. In real-world use, the Greenworks 40V 20-inch mower performs impressively for its class.

It handles:

·        Regular residential grass

·        Slightly overgrown lawns (with slower passes)

·        Uneven patches when height is adjusted correctly

While it’s not designed to replace heavy-duty gas mowers for large properties or thick brush, it provides clean, even cuts for typical suburban lawns.

The 20-inch cutting width helps cover more ground per pass, reducing mowing time compared to smaller cordless models.

Battery Life & Runtime

Battery performance is one of the biggest strengths of this mower. With a fully charged 40V battery, most users can mow:

·        Small yards in one charge

·        Medium yards with careful pacing

In real conditions, runtime varies depending on:

·        Grass thickness

·        Cutting height

·        Mowing speed

For homeowners with larger lawns, keeping a spare Greenworks 40V battery on hand provides uninterrupted mowing.

Ease of Use & Comfort

One of the biggest advantages of the Greenworks 40V Cordless Lawn Mower is how user-friendly it is.

Key comfort features include:

·        Push-button start (no pull cord)

·        Lightweight design compared to gas mowers

·        Smooth rolling wheels

·        Low vibration during operation

The mower is easy to maneuver around trees, flower beds, and garden edges, making it especially suitable for homeowners who prefer simple, stress-free lawn care.

Height Adjustment & Lawn Finish

The mower features a single-lever height adjustment, allowing you to quickly change cutting height across multiple settings. This makes it easy to:

·        Adjust for seasonal grass growth

·        Switch between short trims and taller cuts

·        Adapt to uneven lawn areas

From a lawn-care perspective, consistent height control contributes to a healthier, more even lawn over time.

Noise Level & Environmental Benefits

Compared to gas lawn mowers, the Greenworks 40V model is:

·        Significantly quieter

·        Free of exhaust fumes

·        Low maintenance (no oil, spark plugs, or fuel)

This makes it ideal for residential neighborhoods, early morning mowing, and eco-conscious homeowners.

Build Quality & Durability

The mower features a steel cutting deck, which adds durability compared to plastic-deck cordless models. The overall construction feels solid, and the foldable handle locks securely in place.

With proper care—such as cleaning the deck after use and storing the battery indoors—the mower holds up well across multiple seasons of regular use.

Pros and Cons

Pros

·        Quiet, cordless operation

·        No gas or oil maintenance

·        Wide 20-inch cutting deck

·        Easy push-button start

·        Adjustable cutting height

·        Trusted Greenworks battery platform

Cons

·        Battery runtime limited for very large lawns

·        Less power than commercial gas mowers

·        Best performance on maintained grass

Who Is the Greenworks 40V 20-Inch Cordless Lawn Mower Best For?

This mower is ideal for:

·        Homeowners with small to medium lawns

·        Eco-friendly users avoiding gas equipment

·        People who want low-maintenance lawn care

·        Noise-sensitive neighborhoods

·        Anyone upgrading from corded electric mowers

If you want clean cuts, quiet operation, and cordless convenience, this mower fits perfectly.

Greenworks 40V Cordless Mower vs Gas Lawn Mowers

This comparison highlights why many homeowners are switching to battery-powered lawn mowers.

Is the Greenworks 40V 20-Inch Cordless Lawn Mower Worth It?

From both a homeowner and lawn-care perspective, yes. The Greenworks 40V 20-Inch Cordless Lawn Mower delivers:

·        Reliable cutting performance

·        Quiet, clean operation

·        Easy handling and storage

·        Strong value for its price

For residential lawns that don’t require commercial-grade power, it’s a practical and forward-thinking choice.

Brand Authority Statement

This review is based on hands-on experience with cordless lawn mowers, comparative lawn-care analysis, and long-term residential use cases. Greenworks is a trusted brand in battery outdoor power equipment, known for reliable performance and solid customer support.

Final Verdict

The Greenworks 40V 20-Inch Cordless Lawn Mower is an excellent option for homeowners who want quiet, efficient, and low-maintenance lawn care. It won’t replace heavy-duty gas mowers for large properties, but for everyday residential use, it performs exactly as promised.

Overall Rating: ⭐⭐⭐⭐½ (4.5/5)

Greenworks 40V 20-Inch Cordless Lawn Mower FAQ

What is the Greenworks 40V 20-Inch Cordless Lawn Mower best used for?

The Greenworks 40V 20-Inch Cordless Lawn Mower is best suited for small to medium-sized residential lawns. It’s ideal for routine grass cutting, eco-friendly lawn care, and homeowners who want a gas-free mowing solution.

How powerful is the Greenworks 40V cordless lawn mower?

The 40V lithium-ion system provides strong cutting power for maintained lawns, handling regular grass and slightly overgrown areas with clean, even results when used at the proper height setting.

How long does the Greenworks 40V battery last?

Battery runtime depends on grass thickness and cutting height, but most users can mow small lawns on a single charge. Medium lawns may require slower passes or an extra battery for uninterrupted mowing.

Does the Greenworks 40V 20-Inch Lawn Mower mulch grass?

Yes. This mower supports mulching and rear bagging, allowing you to return nutrients to the lawn or collect clippings based on your preference.

Is the Greenworks 40V Cordless Lawn Mower easy to use?

Yes. It features a push-button start, lightweight design, and smooth handling, making it easy to operate for beginners, seniors, and anyone who prefers simple lawn maintenance.

How loud is the Greenworks 40V cordless lawn mower?

Compared to gas mowers, this model is significantly quieter, making it suitable for residential neighborhoods and noise-sensitive areas.

How loud is the Greenworks 40V cordless lawn mower?

Compared to gas mowers, this model is significantly quieter, making it suitable for residential neighborhoods and noise-sensitive areas.

Does the Greenworks 40V mower require maintenance?

Minimal maintenance is required. There’s no gas, oil, or spark plug, only routine cleaning of the deck and proper battery storage to maintain performance.

Can the battery be used with other Greenworks tools?

Yes. The 40V battery platform is compatible with many other Greenworks outdoor power tools, offering added value for users invested in the system.

Is the Greenworks 40V 20-Inch Cordless Lawn Mower worth buying?

For homeowners seeking a quiet, reliable, and eco-friendly lawn mower, the Greenworks 40V 20-Inch Cordless Lawn Mower offers excellent performance and long-term value.