08 of 10Battery push & self-propelled · Walk-behind
80V 21 in. LM2108S
It cuts like a gas mower and the rear-wheel self-propel is genuinely good, but plan on a second 4Ah battery for anything past a quarter acre and treat the plastic drive gears gently.
Amazon link · we earn a commission if you buy · $699.99 MSRP · Amazon price not shown
cut = score, 5–10 in half-point notchesuncutdry patch = weakestbattery push & self-propelled median, n 1
Scoring note
Reliability 6.5 (30%): plenty of 3–5 year owners with no failures, but the plastic-gear failure theme and some battery replacements inside the warranty window keep it from scoring higher. Performance 7.0 (25%): cut quality and gas-like power are consistently praised, but the manufacturer's 33-minute runtime on one 4Ah pack is below the category norm and owners say a second battery is needed for typical yards. Usability 7.0 (20%): variable-speed RWD and vertical folding are strong, 40-minute recharge is quick, but 75 lb is heavy and one editorial review found the rear flap binds when pulling the mower backwards. Value 8.0 (15%): an 80V self-propelled kit with 4Ah battery and charger for less than the EGO and Ryobi 40V HP equivalents. Support 6.0 (10%): 4-year tool and battery warranty is above average, but no replacement gears, a lost-registration report, and only anecdotal responsiveness. Weighted total 6.9 (6.90).
- Cut width
- 21in
- Runtime per charge
- 33min
- Weight
- 75lb
Drawn from the spec sheet:¼-acre reference lot (walk-behinds are not lawn-rated) · slope not rated · 21 in passes, so far fewer of them · you push it, so the rows are yours. Manufacturer ratings, not our measurements.
Built from 9 sources: 4 owner threads, 1 hands-on review, 1 video, 3 spec pages. Specs last checked Sep 13, 2026.