Name: Greenworks 40V 20" Brushless Push Mower, 4.0Ah Battery (Aluminum Handles + Light)
Brand: Greenworks
SKU: MO40L415

AVERAGE

Winnowl Index

Winnowl Verdict

Our audit of the Greenworks 40V 20" Brushless Push Mower results in an AVERAGE (71) Winnowl Index; it’s a pure Premium Specialist where you're paying a clear premium for Strong Performance, making it a choice for those who value absolute quality over a low price tag. At $297.49, the Mediocre Value suggests that the Greenworks 40V 20" Brushless Push Mower is a luxury-tier choice. It doesn't compete on price, but rather on the strength of its Strong Performance and the security of its Strong reputation. The Greenworks 40V 20" Brushless Push Mower, 4.0Ah Battery (Aluminum Handles + Light) delivers Performance that is 8% above the average with a Total Run Time of 55 minutes—implying you should effectively clear larger properties or handle thick, overgrown grass that usually drains batteries quickly—but the cost is 28% above the class average. Ultimately, the Greenworks 40V 20" Brushless Push Mower is a high-caliber choice for those who refuse to compromise; you are getting Strong Performance backed by Strong Brand Strength, though you should be prepared to pay the full premium for that level of quality and security.

Market Value Index

Mediocre

$297.49

Overpriced Fair High Value

At $297.49, you’re capturing 17% less Performance per dollar than the $232.67 average, confirming its Mediocre Value status.

Performance Rating

Strong

Strengths

Neutrals

Weaknesses

Delivering Strong Performance that is 8% above the average, this unit hits 55 minutes Total Run Time so that you should effectively clear larger properties or handle thick, overgrown grass that usually drains batteries quickly, even if the 1 count Number of Batteries means you should have just enough power to get the job done, but you lack a backup if the grass is thicker than expected.

Brand Strength

Strong

Trust

Reliability

Customer Service

Greenworks scores Strong in Brand Strength, backed by Average Brand Reliability and Average Brand Trust may justify the premium for specific users.

Available At

$297.49 View Deal

The Winnowl Lab Report

Specification	Value	Rating	Vs. Average	Winnowl Insight
Total Run Time	55 minutes	Strong	33% better	Extended-range endurance. Provides a necessary safety buffer for thick turf or properties that push the limits of standard battery tech.
Cutting Width	20 inches	Strong	23% better
Number of Batteries	1 count	Mediocre	33% worse	Single-pack baseline. This is the entry point for cordless mowers, providing no hot-swap capability for larger jobs.
Cutting Height Adjustment	7 settings	Exceptional	25% better	High-precision deck control. Allows for nuanced turf management that is usually reserved for higher-end landscaping gear.
Battery Capacity	4 Ah	Average	4% worse
Charging Time	120 mins	Average	5% worse	Slow-recovery charging. Common in value-tier bundles where the charger lacks active cooling or high-amperage circuitry.
Battery Voltage	40 V	Average	4% better	Standard residential output. This range represents the industry sweet spot for balancing battery weight with reliable cutting torque.
Warranty	3 Years	Average	4% better	Standard industry protection. This coverage aligns with the market average and offers a fair level of consumer security.

Ranking Factors

Insights

Value Rank: #20 out of 45.
Performance Rank: #11 out of 45.
Winnowl Quadrant: Premium

Strengths

At minutes, the Total Run Time is longer than the class average (41.22 minutes) but not as long as the class maximum (70 minutes).
This model offers the most Cutting Height Adjustment in its class at 7 settings, significantly more than the class average of 5.58 settings.
inches cutting width ranks in the Top 10%, maximizing efficiency per pass.

Neutral

A Battery Voltage of V is about average (38.53 V) but below the highest in class at 80 V.
A Battery Capacity of Ah is about average 4.18 Ah but below the class max of 6 Ah.
A Warranty of Years is about average 2.89 Years but below best in class at 5 Years.
A Charging Time of mins is about average 114 mins but below the fastest at 50mins.

Weaknesses

At only battery, this is in the bottom 10% for included power components.

Comparison

Name	Winnowl Index	Value	Performance	Brand	Price	Total Run Time	Battery Voltage	Battery Capacity	Cutting Width	Warranty	Charging Time	Number of Batteries	Cutting Height Adjustment
Greenworks 40V 20" Brushless Push Mower	AVERAGE 71	Mediocre	Strong	Strong	$297.49	55 minutes	40 V	4 Ah	20 inches	3 Years	120 mins	1 count	7 settings
PowerSmart 80V MAX 21in. Cordless Push Lawn Mower	STRONG 83	Strong	Exceptional	Average	$299.99	60 minutes	80 V	6 Ah	21 inches	4 Years	75 mins	1 count	7 settings
MZK MZK 40V(2 x 20V) 13”Cordless Electric Lawn Mower	ELITE 45	Exceptional	Strong	Zero	$159.99	60 minutes	40 V	4 Ah	13 inches	2 Years	120 mins	2 count	4 settings