80V 21in Self-Propelled Cordless Lawn Mower - Quiet, Powerful Cut

In this review the Greenworks 80V 21in self-propelled cordless mower is examined for homeowners who want the power of a gas mower without the noise and maintenance. The bottom line: it delivers robust cutting performance and cordless convenience thanks to a brushless motor and a 4.0Ah battery that can handle roughly 1/4 to 1/2 acre per charge depending on conditions. For anyone who values quieter operation, clean cut quality, and compatibility with an expanding 80V tool ecosystem, this mower earns strong consideration.

Key Features

• 80V power: The high-voltage system supplies steady torque for slicing through tall or thick grass while preserving runtime compared with lower-voltage models.
• 21in steel deck: A durable deck provides an even cutting width that balances maneuverability and coverage for small to mid-size yards.
• Brushless motor: The motor is more efficient and longer lasting, producing more torque with quieter operation than brushed equivalents.
• Self-propelled drive: Rear-wheel drive with variable speed control reduces operator fatigue and improves traction on slopes and uneven terrain.
• 4-in-1 cutting system: Mulch, bag, side discharge, and turbo leaf pickup modes let users adapt the mower to different yard cleanup tasks.
• LED headlight: Built-in lights extend usable mowing hours into early morning or late evening when visibility is low.

Who It's For

This mower is a good fit for homeowners with up to about 1/2 acre who want a cordless alternative to gas models and appreciate quieter operation and lower maintenance. It works well for yards with mixed grass heights and occasional tall patches because the brushless motor offers extra torque.

Those with very large properties, professional landscapers, or users who need continuous multi-hour operation without swapping batteries should consider heavier-duty standbys or multiple battery solutions, as runtime on a single 4.0Ah pack is limited by battery capacity and conditions.

Pros & Cons

Pros

• Strong, quiet cutting from a brushless motor with more torque than standard electric mowers.
• Convenient self-propelled rear-wheel drive and variable speed make mowing less tiring.
• Flexible 4-in-1 system handles bagging, mulching, discharge, and leaf pickup.
• LED headlight extends workable hours and improves visibility.

Cons

• Battery runtime on the included 4.0Ah pack limits continuous mowing to smaller yards without a spare battery.

Specifications

Brand	Greenworks
Voltage	80V
Cutting Width	21in
Drive Type	Self-propelled (rear-wheel)
Motor	Brushless
Battery	4.0Ah included (compatible with 75+ 80V tools)
Features	LED light, 4-in-1 mulch/bag/side/turbo leaf pickup

Our Verdict

The Greenworks 80V 21in self-propelled mower is a smart buy for homeowners who want near-gas power with cordless convenience; it combines a durable steel deck, efficient brushless motor, and useful LED lighting into a relatively quiet package. For small to mid-size yards the value is strong, especially if you plan to expand or share the 80V battery platform across other tools.

Frequently Asked Questions

How large a lawn will the included battery handle?
The 4.0Ah battery can typically mow around 1/4 to 1/2 acre per charge depending on grass height, terrain, and operator technique.

Can it mulch and bag clippings?
Yes, the mower uses a 4-in-1 system that supports mulching, bagging, side discharge, and turbo leaf pickup.

Is the mower noisy compared with gas models?
It is noticeably quieter than a gas mower thanks to the brushless motor, making early morning or evening mowing less disruptive.