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Nitro 80V 21" Cordless Self-Propelled Lawn Mower with Brushless Motor & Rear Wheel Drive

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  • Worx Nitro outdoor tools are engineered to provide gas-like power, performance, and run time.
  • 80V self-propelled lawn mower with rear-wheel drive and variable-speed control designed to handle larger and more challenging lawns.
  • High efficiency brushless motor pairs with (4) 5.0Ah Power Share PRO high-capacity batteries to deliver enhanced power, gas-like performance, and longer run time.
  • Auto-IntelliCut™ Technology automatically adjusts performance to grass conditions for this 80V cordless lawn mower.
  • Durable, 21 in. steel cutting-deck w/ NutriCut™ dual-stage mulching capabilities.
  • Single-lever control for 7-position cutting-height adjustments.
  • Single-lever control for bagging, mulching, and side-discharge modes.
  • LED Lights on this 21 in. cordless lawn mower allow for visibility in low-light conditions.
  • Charge-level indicator provides quick reference to remaining run time.
  • One-touch, fully collapsible handle allows for compact, stand-up storage.
  • Run Longer With High-Capacity Batteries—Worx Power Share PRO intelligent batteries deliver extended run times, plus heat and impact protection. Compatible with all Worx 20V, 40V and 80V tools, outdoor power and lifestyle products.


Rated Voltage
Battery Capacity
4 x 5.0Ah PRO
Deck Size
21 in. | Metal
Blade Cut Width
20 in.
Cutting Height
1.5 in. - 4 in. | 7-Position
Bag Capacity
2 Bushels
Wheel Size
Front: 8 in. | Rear: 10 in.
Unit Weight
77.2 lbs. | 70.6 lbs. (bare)
(1) - Nitro 80V Cordless 21" Lawn Mower
(1) - Collection Bag
(1) - Side-Discharge Chute
(4) - 5.0Ah Batteries (WA3571)
(1) - 4A 4-Port Charger (WA3774)

The Worx Nitro 80V Cordless Self-Propelled Lawn Mower features IntelliCut smart technology inside the lawn mower’s motor. It automatically senses when grass conditions are higher and thicker. Instead of bogging down during these conditions, the lawn mower cutting capabilities speed up to cut more efficiently. On the other hand, when the grass conditions are less demanding, the lawn mower will utilize its lower setting to conserve battery runtime.

IntelliCut refers to the motor of the 80V self-propelled lawn mower changing “speed” to cut more efficiently. On the other hand, the variable speed control lever adjusts the self-propel speed, or pace, at which the lawn mower moves. While operating in more demanding grass conditions, put the lawn mower in a slower speed to provide the blades more time to cut within a given area.

The innovative, quick-change mode lever provides the user the ability to change modes without the use of a plug. No more of a need to store, or lose, the mulch plug. Instead of a plug, the 21 in. cordless lawn mower deck has a sliding “door” that can be opened or closed to change from bag or mulch/side-discharge modes.

California Proposition 65 Warning 

Warning: This product can expose you to chemicals including lead and Di(2-ethylhexyl)phthalate (DEHP) which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

ADVERTENCIA: Este producto puede exponerle a químicos incluyendo lead and Di(2-ethylhexyl)phthalate (DEHP), que son conocidos por el Estado de California como causantes de cáncer y defectos de nacimiento u otros daños reproductivos. Para mayor información, visite

AVERTISSEMENT: Ce produit peut vous exposer à des agents chimiques, y compris lead and Di(2-ethylhexyl)phthalate (DEHP), identifiés par l'État de Californie comme pouvant causer le cancer et des malformations congénitales ou autres effets nocifs sur la reproduction.  Pour de plus amples informations, prière de consulter

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Get to know the Nitro 80V 21" self-propelled lawn mower

The Power to Outperfom Traditional Lawn Mowers


With rear-wheel drive and variable speed control, you're in control of the cut with the functionality to speed it up or slow it down, depending on the needs of the lawn.

Brushless Motor & High-Capacity Batteries

This 21 in. cordless lawn mower uses 4 powerful 20V Power Share™ PRO batteries and a high-efficiency brushless motor for 80V of impressive performance. Power Share™ PRO batteries deliver extended run times, plus heat impact protection.

Auto-IntelliCut™ Technology

Internal sensors in this 80V self-propelled lawn mower detect when the grass gets thicker and automatically dials up the torque to power through. When passing over less dense grass, Auto-IntelliCut™ dials it down to conserve battery.

WORX Power Share Battery, Blower, Lawn Mower, Portable Power Cleaner, Hedge Trimmer and Clippers and Power ToolsWORX Power Share Battery, Blower, Lawn Mower, Portable Power Cleaner, Hedge Trimmer and Clippers and Power Tools
Nitro Brushless Motor

Power, Reliability, and Performance

Brushless motors are more efficient, run 50% longer, are 25% more powerful, and have 10% longer life. Plus, they're smaller and lighter than traditional motors, keeping Nitro tools compact and maneuverable.

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Gas-like power & performance

Advanced engineering provides all the benefits of gas without any of the drawbacks.

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Brushless Motor

Runs longer and stronger than traditional motors to get more done on a single charge.

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The Power to Outperform

Increased run times and gas-like performance makes Nitro a true alternative to gas.

Power Share PRO

Run longer with high-capacity batteries

WORX Power Share Battery, Blower, Lawn Mower, Portable Power Cleaner, Hedge Trimmer and Clippers and Power ToolsWORX Power Share Battery, Blower, Lawn Mower, Portable Power Cleaner, Hedge Trimmer and Clippers and Power Tools