RB 122 Battery Powered Push Lawn Mower (9-Inch Mini, 40V, Brushless, One-Hand Steering)
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DEFICIENT
29
Winnowl Index
Winnowl Verdict
The RB 122 Battery Powered Push Lawn Mower just bottomed out our audit with a DEFICIENT (32) Winnowl Index—the kind of score we only see in "shelf-filler" products. This product fails across all three indicators where Mediocre Brand Strength, Weak Performance, and Weak Value are strong reasons to consider a different product. The specs show the RB 122 Battery Powered Push Lawn Mower (9-Inch Mini, 40V, Brushless, One-Hand Steering) has a Battery Capacity of 2 Ah, which is 60% below the 5.02 class average and meeting the minimum requirements. We'd recommend you look at other Battery Powered Push Lawn Mowers with better Performance and stronger value.
Market Value Index
Weak
$169.99
Overpriced
Fair
High Value
The Weak Value rating identifies a total loss of efficiency where the $169.99 cost is 48% behind the $262.51 class baseline.
Performance Rating
Weak
A Weak Performance rating is to due specs like the 2 Ah Battery Capacity which is 60% below the class mean, which may mean meeting the minimum requirements.
Brand Strength
Mediocre
The Mediocre Brand Strength of RB is because of Mediocre Brand Trust and Average reliability compared to other Battery Powered Push Lawn Mowers.
Available At
$169.99
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The Winnowl Lab Report
| Specification | Value | Rating | Vs. Average | Winnowl Insight |
|---|---|---|---|---|
| Cutting Width | 9 inches | Weak | 46% worse | |
| Usable Energy Capacity | 64 Wh | Mediocre | 67% worse | |
| Total Capacity | 2 Ah | Weak | 68% worse | |
| Cutting Height Adjustment | 3 settings | Weak | 47% worse | Coarse adjustment range. Limited settings can result in "scalping" the lawn or leaving it too long to look tidy. |
| 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. |
| Single Battery Capacity | 2 Ah | Weak | 52% 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. |
Ranking Factors
Insights
- Value Rank: #84 out of 89.
- Performance Rank: #88 out of 89.
- Winnowl Quadrant: Budget
Neutral
- A Battery Voltage of V is about average (39.08 V) but below the highest in class at 80 V.
Weaknesses
- Lowest Total Capacity in its class at 2 Ah, well below the class high at 12 Ah.
- Narrowest Cutting Width in its class at 9 inches, well below the widest in class at 21 inches.
- Least Cutting Height Adjustment in its class at 3 settings, well below the most in its class at10 settings.
- 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RB 122 Battery Powered Push Lawn Mower |
DEFICIENT
29
|
Weak | Weak | Mediocre | $169.99 | 64 Wh | — | 40 V | 2 Ah | 9 inches | — | — | 1 count | 3 settings | 2 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
