Greenworks STBA40B421 Battery Powered Push Lawn Mower (16-Inch, 40V, Blower and Trimmer Combo Kit)
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AVERAGE
66
Winnowl Index
Winnowl Verdict
The Greenworks STBA40B421 Battery Powered Push Lawn Mower just cleared our audit with a MEDIOCRE (59) Winnowl Index—a score that unfortunately reflects more "brand" than "benefit." This is an Average Performance and Mediocre Value product from a brand with Strong Brand Strength. With the Greenworks STBA40B421 Battery Powered Push Lawn Mower (16-Inch, 40V, Blower and Trimmer Combo Kit), the specs show that meeting the minimum requirements due to Battery Capacity of 4 Ah, which sits 20% below the average. We recommend a hard pivot from this Brand Tax product; the 56% higher price tag results in 40% less hardware for your dollar than the class average.
Market Value Index
Mediocre
$409.99
Overpriced
Fair
High Value
At $409.99, you are capturing 40% less Performance per dollar than the $262.51 average, confirming its Mediocre Value status.
Performance Rating
Average
Compared to others in its class, this product's performance is 8% above the average and earns an Average Performance rating. The Number of Batteries indicates you should be able to swap packs instantly or benefit from double the runtime without returning to the garage, but you may find that the 4 Ah Battery Capacity means that meeting the minimum requirements.
Brand Strength
Strong
Greenworks maintains Strong Brand Strength with Average Brand Reliability and Average Brand Trust.
Available At
$409.99
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The Winnowl Lab Report
| Specification | Value | Rating | Vs. Average | Winnowl Insight |
|---|---|---|---|---|
| Usable Energy Capacity | 256 Wh | Average | 30% better | |
| Number of Batteries | 2 count | Strong | 38% better | Dual-battery advantage. Provides a critical safety net and allows for continuous work on larger residential properties. |
| Total Capacity | 8 Ah | Strong | 28% better | |
| Total Run Time | 45 minutes | Average | 9% better | Standard duty cycle. This endurance level matches the average residential mowing session for most homeowners. |
| Cutting Height Adjustment | 5 settings | Average | 12% worse | Standard precision. Offers enough variety to handle the transition from spring growth to summer dormancy. |
| Cutting Width | 16 inches | Average | 3% worse | |
| Battery Voltage | 40 V | Average | 2% better | Standard residential output. This range represents the industry sweet spot for balancing battery weight with reliable cutting torque. |
| Charging Time | 120 mins | Average | 2% worse | Slow-recovery charging. Common in value-tier bundles where the charger lacks active cooling or high-amperage circuitry. |
| Warranty | 3 Years | Average | 2% better | Standard industry protection. This coverage aligns with the market average and offers a fair level of consumer security. |
| Single Battery Capacity | 4 Ah | Average | 4% worse |
Ranking Factors
Insights
- Value Rank: #36 out of 89.
- Performance Rank: #29 out of 89.
- Winnowl Quadrant: High Value
Strengths
- Ah capacity is in the top 10%, offering superior "fuel tank" size for an electric platform.
- Including batteries puts this in the Top 10% for out-of-the-box runtime.
Neutral
- A Battery Voltage of V is about average (39.08 V) but below the highest in class at 80 V.
- A Cutting Width of inches is about average (16.57 inches) but narrower than the widest in class at 21 inches.
- A Warranty of Years is about average 2.95 Years but below best in class at 5 Years.
- A Total Run Time of minutes is about average (41.30 minutes) but not as long as the class max of 70 minutes.
- A Cutting Height Adjustment of settings is about average (5.68 settings) but not as many as the class max of 10 settings.
- A Charging Time of mins is about average 117.19 mins but below the fastest at 30mins.
Comparison
| Name | Winnowl Index | Value | Performance | Brand | Price | Usable Energy Capacity | Total Run Time | Battery Voltage | Total Capacity | Cutting Width | Warranty | Charging Time | Number of Batteries | Cutting Height Adjustment | Single Battery Capacity |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Greenworks STBA40B421 Battery Powered Push Lawn Mower |
AVERAGE
66
|
Mediocre | Average | Strong | $409.99 | 256 Wh | 45 minutes | 40 V | 8 Ah | 16 inches | 3 Years | 120 mins | 2 count | 5 settings | 4 Ah |
| WORX WG752 Nitro Battery Powered Push Lawn Mower |
ELITE
86
|
Fair | Strong | Strong | $332.53 | 320 Wh | 50 minutes | 40 V | 10 Ah | 20 inches | 5 Years | 120 mins | 2 count | 7 settings | 5 Ah |
| PowerSmart 80V MAX 21in. Cordless Push Lawn Mower |
STRONG
79
|
Mediocre | Strong | Average | $399.99 | 384 Wh | 60 minutes | 80 V | 6 Ah | 21 inches | 4 Years | 75 mins | 1 count | 7 settings | 6 Ah |
| LiTHELi Electric Lawn Mower |
AVERAGE
73
|
Exceptional | Average | Mediocre | $119.99 | 256 Wh | 30 minutes | 40 V | 8 Ah | 17 inches | 3 Years | 120 mins | 2 count | 6 settings | 4 Ah |
Rankings
