Worx Nitro 40V Brushless 21" Cordless Self-Propelled Lawn Mower
Push / Walk-Behind mower · Model WP773 · Residential-duty · Battery
The Worx Nitro 40V Brushless 21 in Cordless Self-Propelled Lawn Mower is a residential-grade battery walk-behind mower, a quiet, low-maintenance choice for smaller yards, with a 20-inch deck and a 40 V battery. It weighs 63.7 lb (28.9 kg).
At a glance
Engine
| Power Source | battery |
|---|---|
| Fuel Type | Battery / Electric / Cordless |
Electrical
| Voltage | 40 V |
|---|
Deck
| Cutting Width | 20 in (508 mm) |
|---|---|
| Min Cut Height | 1.5 in (38 mm) |
| Max Cut Height | 4 in (102 mm) |
| Cut Positions | 7 |
Dimensions
| Weight | 64 lbs (28.9 kg) |
|---|
General
| Bagger Capacity | 2 bu (70.5 L) |
|---|
Similar models
Other push / walk-behind mowers with comparable specs — including other brands — that buyers cross-shop with the Nitro 40V Brushless 21 in Cordless Self-Propelled Lawn Mower.
Specs verified against the manufacturer spec sheet on Jun 6, 2026 — worx.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.
Source: Worx (manufacturer) · archived copy