Ryobi 40V HP Brushless 21" Self-Propelled Mower
Push / Walk-Behind mower · Model RY40HPLM01B · Residential-duty · Battery
The Ryobi 40V HP Brushless 21 in Self-Propelled Mower is a residential-grade battery walk-behind mower, a quiet, low-maintenance choice for smaller yards, with a 21-inch deck and a 40 V battery. It weighs 74.8 lb (33.9 kg).
Also sold as: 40V HP Brushless 21 in Self-Propelled Mower Kit (Kit (battery & charger included))
At a glance
Engine
| Power Source | battery |
|---|---|
| Fuel Type | Battery / Electric |
Electrical
| Voltage | 40 V |
|---|
Deck
| Cutting Width | 21 in (533 mm) |
|---|---|
| Min Cut Height | 1 in (25 mm) |
| Max Cut Height | 4 in (102 mm) |
| Discharge | Mulching, Bagging, Side Discharge |
Drive
| Drive Type | Self-Propelled |
|---|
Dimensions
| Weight | 75 lbs (33.9 kg) |
|---|
General
| Bagger Capacity | 2 bu (70.5 L) |
|---|---|
| Warranty | 5 yr |
Similar models
Other push / walk-behind mowers with comparable specs — including other brands — that buyers cross-shop with the 40V HP Brushless 21 in Self-Propelled Mower.
Specs verified against the manufacturer spec sheet on Jun 6, 2026 — ryobitools.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.
Source: Ryobi (manufacturer) · archived copy