Greenworks 80V 21in Brushless Cordless Push Mower - Quiet, Powerful

In this review of the Greenworks 80V 21in Brushless Cordless Push Lawn Mower the bottom line is clear: this mower is aimed at homeowners who want a gas-free, low-maintenance option that delivers near-gas power and long runtime. It stands out because the included 80V 4.0Ah battery and 60 minute rapid charger provide up to 60 minutes of run-time in typical conditions, making it a practical choice for small to medium yards where quiet, reliable cutting and minimal upkeep matter.

Key Features

• 80V 4.0Ah battery: Provides up to 60 minutes of run-time on a full charge so most single-yard jobs can be completed without swapping batteries.
• Brushless motor: Delivers more torque, quieter operation, and longer motor life compared with traditional brushed motors.
• 21in steel deck: The durable cutting deck covers more ground per pass for faster mowing and better distribution of clippings.
• 3-in-1 cutting system: Allows mulch, rear bagging, or side discharge so users can choose the finish that suits their lawn and cleanup routine.
• Single lever 7-position height adjustment: Makes it quick to change cutting height for different grass conditions and seasons.
• Push button start: Eliminates pull starts and reduces maintenance since there is no gas, oil, or emissions to manage.

Who It's For

This mower is best for homeowners with small to medium-sized yards who want a quieter alternative to gas mowers and the convenience of a battery that charges in about an hour. People who value easy starting, low maintenance, and the ability to switch between mulching, bagging, and side discharge will find this a sensible everyday tool.

Those with very large properties, commercial mowing needs, or who require extended continuous runtime beyond the stated 60 minutes should consider higher-capacity battery systems or dual-battery solutions, as run-time varies with grass condition and operator technique.

Pros & Cons

Pros

• Impressive battery life for a single included 4.0Ah pack that often finishes a full yard on one charge.
• Brushless motor gives strong, quiet performance and reduced maintenance over time.
• Versatile 3-in-1 system and easy 7-position deck adjustment for varied lawn needs.
• Rapid charger restores the battery in about 60 minutes so downtime is minimal.

Cons

• Run-time will vary with grass height and wet conditions, so heavy or very wet lawns may drain the battery faster.
• As a push mower, it is less suitable for very large properties where a self-propelled or ride-on machine would be faster.

Specifications

Power System	80V battery
Battery Included	4.0Ah 80V
Charger	60 minute rapid charger
Cutting Width	21in steel deck
Drive Type	Push (walk-behind)
Cutting Options	Mulch, rear bagging, side discharge
Height Adjustment	Single lever, 7 positions

Our Verdict

The Greenworks 80V 21in brushless cordless push mower is a strong choice for homeowners seeking a low-maintenance, quiet machine that performs comparably to gas mowers for small to medium yards. With a brushless motor, a 4.0Ah battery that often lasts through a typical yard, and a fast 60 minute charger, it offers solid value for people who prioritize convenience and reduced upkeep.

Frequently Asked Questions

How long does the battery last?
On a full charge the included 4.0Ah battery can provide up to about 60 minutes of run-time, though actual time depends on grass condition and operator technique.

Can it handle heavy or wet grass?
The brushless motor provides good torque and customers report it handles heavy grass well, but wet, tall grass will reduce run-time and may require slower passes.

What cutting options are available?
The mower supports a 3-in-1 system: mulch, rear bagging, and side discharge, and has a single lever with 7 height positions.