PowerSmart 80V MAX 21" Cordless Lawn Mower, 3-in-1 Brushless Electric Lawn Mower with 6.0Ah Lithium-ion Battery & Charger (PS76821)
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AVERAGE
66
Winnowl Index
Winnowl Verdict
The PowerSmart 80V MAX 21" Cordless Lawn Mower enters the Battery Powered Self-Propelled Lawn Mowers class with an AVERAGE (71) Winnowl Index, tracking as a low-regret, better than average choice. This rating is really the balance between Exceptional Value,Average Performance and, Average Brand Strength from PowerSmart. The PowerSmart 80V MAX 21" Cordless Lawn Mower, 3-in-1 Brushless Electric Lawn Mower with 6.0Ah Lithium-ion Battery & Charger (PS76821) gives you a Battery Voltage of 80 V, which sits above the 45.19 class average and suggests you should be able to power through tall fescue and overgrown weeds without the motor struggling or bogging down. This is a safe buy with balance across value, Performance and brand make this predictable buy for your money.
Market Value Index
Strong
$399.99
Overpriced
Fair
High Value
The Exceptional Value rating is driven by a $399.99 cost that gives you 53% better Performance than other Battery Powered Self-Propelled Lawn Mowers.
Performance Rating
Average
With an Average Performance rating, the Battery Voltage of 80 V suggests you should be able to power through tall fescue and overgrown weeds without the motor struggling or bogging down, though the Warranty at 2 Years might occasionally mean you should be able to protect your investment through the first few seasons of normal residential use.
Brand Strength
Average
PowerSmart has Average Brand Strength, backed by Mediocre Brand Trust and Average Brand Reliability.
Available At
$399.99
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The Winnowl Lab Report
| Specification | Value | Rating | Vs. Average | Winnowl Insight |
|---|---|---|---|---|
| Warranty | 2 Years | Weak | 48% worse | Standard residential protection. Covers the machine through the initial years of typical seasonal use. |
| Battery Voltage | 80 V | Strong | 42% better | High-torque power plant. Capable of maintaining high RPMs through dense turf and varying terrain. |
| Cutting Height Adjustment | 5 settings | Weak | 29% worse | Standard residential adjustment range. Provides enough flexibility for basic seasonal changes. |
| Total Capacity | 6 Ah | Average | 37% worse | High-capacity power supply that prevents the motor from bogging down or stalling when cutting through thick, heavy grass. |
| Number of Batteries | 1 count | Average | 41% worse | Standard single-battery kit. Ideal for standard suburban lots that can be finished in one session. |
| Total Run Time | 60 minutes | Average | 4% better | High-endurance rating. Provides a safety buffer for thick grass or larger properties. |
| Cutting Width | 21 inches | Average | Average | Standard residential deck width. Balanced for efficiency and maneuverability through most garden gates. |
| Usable Energy Capacity | 384 Wh | Average | 4% worse | |
| Charging Time | 90 mins | Average | 8% better | Standard residential charge rate. Balanced for typical weekly maintenance schedules. |
| Single Battery Capacity | 6 Ah | Average | 3% better |
Ranking Factors
Insights
- Value Rank: #47 out of 75.
- Performance Rank: #49 out of 75.
- 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 (21.21 inches) but narrower than the widest in class at 26 inches.
- A Total Run Time of minutes is about average (57.45 minutes) but not as long as the class max of 150 minutes.
- A Charging Time of mins is about average 98.21 mins but below the fastest at 30mins.
Weaknesses
- At Ah, the Total Capacity is below the average of 9.55 Ah and well below the class maximum (24 Ah).
- Shortest Warranty in its class at 2 Years, well below longest in class at 5 Years.
- With only settings, this is in the bottom 10% for height adjustability.
- At only battery, this is in the bottom 10% for included power components.
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PowerSmart 80V MAX 21" Cordless Lawn Mower |
AVERAGE
66
|
Strong | Average | Average | $399.99 | 384 Wh | 60 minutes | 80 V | 6 Ah | 21 inches | 2 Years | 90 mins | 1 count | 5 settings | 6 Ah |
| Kobalt 80-Volt 21-in Self-propelled Battery Lawn Mower |
ELITE
94
|
Exceptional | Strong | Exceptional | $599.00 | 576 Wh | 75 minutes | 80 V | 9 Ah | 21 inches | 5 Years | 60 mins | 2 count | 7 settings | 5 Ah |
| Greenworks 82V 25-Inch Battery Powered Self-Propelled Lawn Mower |
ELITE
86
|
Fair | Strong | Strong | $979.97 | 787.20 Wh | 60 minutes | 82 V | 12 Ah | 25 inches | 4 Years | 30 mins | 3 count | 7 settings | 4 Ah |
| LiTHELi 18-Inch Brushless Self-Propelled Mower |
MEDIOCRE
59
|
Exceptional | Mediocre | Mediocre | $276.59 | 256 Wh | 50 minutes | 40 V | 8 Ah | 18 inches | 5 Years | 120 mins | 2 count | 6 settings | 4 Ah |
Rankings
