
Greenworks 80V 21" Brushless Cordless (Self-Propelled) Lawn Mower (75+ Compatible Tools), 4.0Ah Battery and 60 Minute Rapid Charger Included
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Greenworks
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Battery Powered Self-Propelled Lawn Mowers
Winnowl Verdict
The $509.99 price sits right at the class average of $557.27 and results in the Fair Value rating.
The Average Performance rating is based on opposing data points; with the Battery Voltage of 80 V you should be able to power through tall fescue and overgrown weeds without the motor struggling or bogging down, but with the Total Run Time of 45 minutes you will likely be able to mow a typical front and back yard on one charge without having to stop to find a charger.
Greenworks has Strong Brand Strength, meaning Average Brand Reliability and Average Brand Trust may reduce the post purchase risk.
The Winnowl Lab Report
| Specification | Value | Rating | Vs. Average | Winnowl Insight |
|---|---|---|---|---|
| Total Run Time | 45 minutes | Mediocre | 19% worse | Standard suburban endurance. Rated for roughly 1/4 acre under normal conditions. |
| Battery Voltage | 80 V | Strong | 32% better | High-torque power plant. Capable of maintaining high RPMs through dense turf and varying terrain. |
| Battery Capacity | 4 Ah | Mediocre | 27% worse | Standard suburban capacity. Balanced for roughly 45-60 minutes of runtime. |
| Number of Batteries | 1 count | Average | 39% worse | Standard single-battery kit. Ideal for standard suburban lots that can be finished in one session. |
| Cutting Width | 21 inches | Average | 2% worse | Standard residential deck width. Balanced for efficiency and maneuverability through most garden gates. |
| Charging Time | 75 mins | Average | 9% better | Standard residential charge rate. Balanced for typical weekly maintenance schedules. |
| Warranty | 4 Years | Average | 4% better | Extended service commitment. Reflects high manufacturer confidence in the motor and battery electronics. |
| Cutting Height Adjustment | 7 settings | Average | 3% better | High-precision adjustment rack. Allows for fine-tuning based on grass species and regional moisture levels. |
Ranking Factors
Insights
- Value Rank: #22 out of 40.
- Performance Rank: #28 out of 40.
- Winnowl Quadrant: Budget
Strengths
- V provides high-end power delivery, placing it in the top 10% for voltage in this class.
Neutral
- A Cutting Width of inches is about average (21.40 inches) but narrower than the widest in class at 26 inches.
- A Warranty of Years is about average 3.83 Years but below best in class at 5 Years.
- A Total Run Time of minutes is about average (55.78 minutes) but not as long as the class max of 90 minutes.
- A Cutting Height Adjustment of settings is about average (6.80 settings) but not as many as the class max of 10 settings.
- A Charging Time of mins is about average 82.65 mins but below the fastest at 45mins.
Weaknesses
- Ah is among the lowest capacities in class, ranking in the bottom 10%.
- 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 80V 21" Brushless Cordless (Self-Propelled) Lawn Mower |
AVERAGE
74
|
Fair | Average | Strong | $509.99 | 45 minutes | 80 V | 4 Ah | 21 inches | 4 Years | 75 mins | 1 count | 7 settings |
| Kobalt 80-Volt 21-in Self-propelled Battery Lawn Mower |
ELITE
91
|
Strong | Strong | Exceptional | $599.00 | 75 minutes | 80 V | 5 Ah | 21 inches | 5 Years | 60 mins | 2 count | 7 settings |
| Greenworks 82V 25” Battery Powered Lawn Mower |
STRONG
85
|
Fair | Strong | Strong | $699.99 | 90 minutes | 82 V | 4 Ah | 25 inches | 4 Years | 60 mins | 2 count | 7 settings |
| PowerSmart 80V MAX 21" Cordless Lawn Mower |
AVERAGE
78
|
Exceptional | Strong | Average | $329.00 | 60 minutes | 80 V | 6 Ah | 21 inches | 2 Years | 90 mins | 1 count | 5 settings |