The Greenworks MO40L517 cordless lawn mower stands out in the battery-powered garden tool market with its brushless motor technology and self-propelled design. Ideal for residential use, this 21-inch mower combines efficiency, quiet operation, and multiple cutting options. This review explores its features, user experiences, and how it compares with similar cordless mowers to help U.S. customers make an informed purchase decision.
Quick Verdict: Reliable 21-Inch Cordless Mower with Advanced Features
The Greenworks MO40L517 earns a solid 4.1 out of 5 stars, reflecting strong user satisfaction for its durability and versatility in lawn maintenance. Positioned in the mid-price tier, this mower includes a 5.0Ah battery and charger, making it a cost-effective option for small to medium-sized yards requiring regular upkeep and maneuverability.

Highlighting Key Specifications That Define Performance
| Specification | Details |
|---|---|
| Power Source | Battery Powered, 40V with included 5.0Ah Lithium-Ion battery |
| Cutting Width | 21 inches |
| Motor Type | Brushless motor for enhanced torque and longevity |
| Operation Mode | Self-propelled with rear-wheel drive and variable speed control |
| Deck Material | Durable steel |
| Dimensions | 65”D x 25.63”W x 40.95”H |
| Weight | 73.9 pounds |
| Cut Height Positions | 7 adjustable height positions |
| Country of Origin | Vietnam |
What Real Users Appreciate and Critique About This Mower
Positive feedback dominates customer sentiments, with approximately 80% praising its ease of use and quietness. The lightweight design is frequently mentioned, making it easy to maneuver around flower beds and tight spaces. Customers also commend the cutting performance, particularly in handling thick and tall grass efficiently.
That said, battery life opinions vary. Some users report sufficient runtime for their yard size, while others find the battery depletes faster than expected under heavy use. Here are representative quotes from verified buyers:
- “Cuts through thick grass with surprising ease; quiet and smooth operation.”
- “Perfect for my small yard, and the self-propelled feature makes mowing effortless.”
- “Battery could last longer, especially when using higher speeds and tougher patches.”
Placing the Greenworks MO40L517 Side-by-Side With Competitors
| Feature | Greenworks MO40L517 | EGO Power+ LM2142SP | Sun Joe iON16LM-HYB |
|---|---|---|---|
| Voltage | 40V | 56V | 40V |
| Cutting Width | 21 inches | 21 inches | 16 inches |
| Self-Propelled | Yes | Yes | No |
| Battery Included | 5.0Ah Lithium-Ion | 5.0Ah Lithium-Ion | 2.0Ah Lithium-Ion |
| Noise Level | 3x Quieter than gas | Quiet, but no specific claim | Moderately quiet |
| Cutting Options | 4-in-1 (mulch, bag, side discharge, turbo leaf pickup) | 3-in-1 | 2-in-1 |
| Weight | 73.9 lbs | 72 lbs | 39 lbs |
| Price Tier | Mid-range (est.) | Higher mid-range (est.) | Lower mid-range (est.) |
Identifying Who Will Benefit Most From the Greenworks MO40L517
- Homeowners with small to medium-sized yards seeking cordless convenience.
- Users who prefer quiet lawn mowing sessions early mornings or evenings.
- People wanting an electric mower with multiple cutting functions in one device.
- Gardeners needing better maneuverability on mulched areas or around landscaping.
- Consumers interested in a self-propelled feature for reduced physical effort.
Who Might Consider Alternatives Instead
- Those with large, expansive lawns where longer battery life is critical.
- Users preferring a lighter weight mower for frequent lifting or portability.
- Individuals requiring the highest voltage power options for dense or overgrown lawns.
- Buyers on a strict budget looking for entry-level electric mowers.
Value Assessment: Pricing Trends and Expected Investment
The Greenworks MO40L517 carries an MSRP reflecting its feature-rich design and battery inclusion. While retail prices fluctuate, it commonly sells at a competitive rate that justifies its capabilities. An ideal purchase often occurs when priced below typical sale thresholds, considering user feedback on runtime versus power.
For shoppers tracking deals, patience may yield a better price on seasonal sales or promotional offers. Investing in this mower aligns well with those who prioritize durable materials and quiet operation over the lowest initial cost.
Frequently Asked Questions Surrounding This Cordless Mower
- Does the battery support other Greenworks tools?
Yes, the included 5.0Ah 40V battery is compatible with over 75 Greenworks tools sharing the same power platform. - Can the mower handle wet or tall grass?
It performs well on moderately tall and thick grass but is best used on dry lawns for optimal performance and battery efficiency. - How long does the battery last per charge?
Battery life varies between 45 to 60 minutes based on cutting speed and grass density; heavier usage will reduce runtime. - Is assembly required out of the box?
Some assembly is needed, primarily attaching handles and the grass collection bag; instructions are straightforward. - Does the mower have a safety shutoff feature?
Yes, the mower stops immediately when the handle lever is released, ensuring user safety.
Final Thoughts on the Greenworks MO40L517 21-Inch Cordless Lawn Mower
The Greenworks MO40L517 stands out for its combination of a steel deck, brushless motor, and self-propelled mechanism, offering a quiet yet powerful lawn care solution. Its LED headlights and 4-in-1 cutting options add convenience, making it an excellent choice for those seeking an environmentally friendly mower that balances performance with ease of use.
While battery life receives mixed reviews, the mower’s overall design and versatility justify it as a worthwhile investment for typical yard maintenance. Users seeking a reliable, cordless machine with robust features and quiet operation will find this model competitive in the U.S. lawn mower market.
