PowerSmart DB2821 Battery Powered Push Lawn Mower (21-Inch, 80V, 6.0Ah Battery, Brushless)

PowerSmart DB2821 Battery Powered Push Lawn Mower (21-Inch, 80V, 6.0Ah Battery, Brushless)

When you purchase through links on our site, we may earn an affiliate commission.

PowerSmart | Battery Powered Push Lawn Mowers

AVERAGE
73
Winnowl Index

Winnowl Verdict

At an AVERAGE (73) Winnowl Index, the PowerSmart DB2821 Battery Powered Push Lawn Mower offers top-tier specs, but the lack of value at this price point makes it a difficult choice. You get Strong Performance with this unit, but it comes at the cost of Mediocre Value and only Average Brand Strength to back it up. The PowerSmart DB2821 Battery Powered Push Lawn Mower (21-Inch, 80V, 6.0Ah Battery, Brushless) offers a 80 V Battery Voltage that beats the average by 75% and means you should effectively clear heavy brush and thick stalks that would typically require a professional-grade gas mower, yet the $399.99 price makes this a poor value for the Battery Powered Push Lawn Mowers category. We suggest checking out other Battery Powered Push Lawn Mowers in the class; paying a 52% premium for 16% less value doesn't make sense unless you can't find this level of performance in another product.
Market Value Index
Mediocre
$399.99
Overpriced Fair High Value

The Mediocre Value rating stems from the $399.99 cost that is 16% less efficient than the $262.51 average for the Battery Powered Push Lawn Mowers class.

Performance Rating
Strong
Strengths
Neutrals
Weaknesses

The Strong Performance measures 27% above the average; you can see this in the 80 V Battery Voltage which provides you should effectively clear heavy brush and thick stalks that would typically require a professional-grade gas mower, even though the 1 count Number of Batteries eventually leads to 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
Average
Trust
Reliability
Customer Service

PowerSmart scores Average Brand Strength due to its Average Brand Trust and Average Brand Reliability.

Available At
Amazon
$399.99 View Deal

The Winnowl Lab Report

Specification Value Rating Vs. Average Winnowl Insight
Battery Voltage 80 V
Exceptional 105% better Elite voltage tier. This level of power is often overkill for small lots but provides maximum efficiency for challenging terrain.
Battery Capacity 6 Ah
Exceptional 44% better
Total Run Time 50 minutes
Average 21% better Standard duty cycle. This endurance level matches the average residential mowing session for most homeowners.
Cutting Width 21 inches
Strong 27% better
Number of Batteries 1 count
Average 31% worse Single-pack baseline. This is the entry point for cordless mowers, providing no hot-swap capability for larger jobs.
Warranty 2 Years
Average 32% worse Standard industry protection. This coverage aligns with the market average and offers a fair level of consumer security.
Charging Time 90 mins
Average 23% better Standard charge speed. This turnaround is acceptable for those who finish their entire yard in one go on a single charge.
Cutting Height Adjustment 6 settings
Average 6% better Standard precision. Offers enough variety to handle the transition from spring growth to summer dormancy.

Ranking Factors

Insights

  • Value Rank: #26 out of 45.
  • Performance Rank: #6 out of 45.
  • Winnowl Quadrant: High Value

Strengths

  • This model offers the highest Battery Voltage in its class at 80 V, significantly above the class average of 39.08 V.
  • This model offers the highest Battery Capacity in its class at 6 Ah, significantly above the class average of 4.17 Ah.
  • This model offers the widest Cutting Width in its class at 21 inches, significantly more than the class average of 16.57 inches.
  • At minutes, the Total Run Time is longer than the class average (41.30 minutes) but not as long as the class maximum (70 minutes).
  • At mins, the Charging Time is faster than the class average (117.19 mins) but not as fast as some products at (30 mins).

Neutral

  • A Cutting Height Adjustment of settings is about average (5.68 settings) but not as many as the class max of 10 settings.

Weaknesses

  • The Years warranty is in the bottom 10%, offering minimal long-term protection.
  • 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
PowerSmart DB2821 Battery Powered Push Lawn Mower
AVERAGE
73
Mediocre Strong Average $399.99 50 minutes
80 V
6 Ah
21 inches
2 Years
90 mins
1 count
6 settings
Kobalt Gen4 40-volt, 20-in Push Lawn Mower
STRONG
86
Fair Strong Exceptional $0.00 60 minutes
40 V
6 Ah
20 inches
5 Years
180 mins
1 count
6 settings
PowerSmart 80V MAX 21in. Cordless Push Lawn Mower
STRONG
80
Mediocre Strong Average $399.99 60 minutes
80 V
6 Ah
21 inches
4 Years
75 mins
1 count
7 settings
LiTHELi Electric Lawn Mower
AVERAGE
71
Exceptional Average Average $119.99 30 minutes
40 V
4 Ah
17 inches
3 Years
120 mins
2 count
6 settings