Greenworks 80V 21in Push Lawn Mower, 4.0 Ah Battery and Charger

The Greenworks 80V 21-inch Push Lawn Mower provides a cordless alternative to traditional gas equipment, designed for homeowners who want clean yard maintenance without engine upkeep. Powered by an 80-volt battery system, this push mower tackles standard residential lawns up to a half acre on a single charge of its 4.0 Ah battery. It replaces difficult pull cords, fuel storage, and exhaust fumes with instant push-button starts and battery power.

At the center of the machine is a brushless motor paired with a 21-inch steel deck. Brushless technology delivers increased torque and a longer motor lifespan, allowing the mower to work through tough grass conditions without stalling. Because the deck is constructed from steel rather than lightweight plastic, it offers durable performance during regular cutting sessions. The motor also operates three times quieter than conventional gas mowers, making yard work significantly less disruptive to family and neighbors.

Flexibility is another core asset of this design. The mower features 4-in-1 grass management, giving you the choice to mulch clippings back into the turf, collect them in the included grass bag, discharge from the side, or switch to turbo leaf pickup for seasonal cleanup. Built-in LED headlights illuminate your path, allowing you to mow early in the morning or late at dusk. Furthermore, the included 80V battery is compatible with more than 75 other Greenworks 80V tools, such as string trimmers, blowers, and chainsaws.

There are a few practical trade-offs to evaluate before buying. As a push mower without self-propelled drive, you must push the machine manually across your turf, which demands physical effort on uneven or sloping lawns. Additionally, while the 4.0 Ah battery covers up to a half acre, larger properties will require an extra battery or downtime for recharging with the included fast charger. The product data also does not specify the unit weight or the available cutting height positions.

Verdict: For suburban homeowners managing a half acre or less, this cordless push mower offers a practical exit from gas cans, oil changes, and pull cords. Its durable steel deck, flexible 4-in-1 cleanup modes, and four-year warranty on both the mower and battery make it a reliable choice for cleaner lawn care.

• Power Source: 80V Lithium-ion Battery
• Battery Capacity: 4.0 Ah
• Deck Width: 21 inches
• Deck Material: Steel
• Motor Type: Brushless
• Cutting Modes: 4-in-1 (mulch, bag, side discharge, turbo leaf pickup)
• Coverage per Charge: Up to 1/2 acre
• Sound Level: 3X quieter than gas mowers
• Lighting: Integrated high-visibility LED headlights
• Included Accessories: 4.0 Ah battery, fast charger, grass bag
• Ecosystem Compatibility: Works with 75+ Greenworks 80V tools
• Warranty: 4-year limited tool and battery warranty

A great fit if you:

• Manage a yard of a half acre or less and want to complete your cutting routine on a single charge without buying gas or mixing oil.
• Prefer a quiet machine that runs three times quieter than gas mowers so you can maintain your turf without creating loud neighborhood disturbances.
• Already use or plan to invest in the Greenworks 80V platform to power accompanying outdoor tools like string trimmers, leaf blowers, or chainsaws.

Consider something else if you:

• Own a property significantly larger than a half acre and prefer not to pause for battery recharges or purchase extra battery packs.
• Need a self-propelled drive system to assist you across steep backyard hills or rough terrain where pushing requires substantial physical exertion.

Confirm on the listing:

• Check whether the mower handle folds down for compact vertical or horizontal storage inside your garage or garden shed.
• Measure your lawn dimensions to confirm that your total cutting area remains within the half-acre capacity of the included 4.0 Ah battery.
• Check the product listing for details on cutting height adjustments, as the listed specifications do not state the range or lever mechanism.
• Confirm what existing outdoor power equipment you own to see if the included 80V battery and fast charger can expand your setup.

How to compare your options: When evaluating cordless mowers, look closely at deck construction, cleanup versatility, and battery system expansion. This model stands out with a rugged 21-inch steel deck instead of plastic, 4-in-1 cleanup options including leaf collection, and shared battery compatibility across more than 75 separate 80-volt yard tools.

Before starting your initial lawn cut, connect the 4.0 Ah battery to the included fast charger until it reaches full capacity. Starting with a fully replenished pack ensures you achieve the full half-acre runtime across your property.

Switch between the four grass management settings based on yard conditions. Utilize the mulching insert during regular maintenance to feed clippings back to the lawn, connect the grass bag for tidy walkways, open the side discharge during heavier growth, or engage the turbo leaf pickup function when clearing autumn yard debris.

Maintain the 21-inch steel deck by wiping away damp turf buildup after mowing, following any cleaning recommendations provided in the manufacturer guide. Since the brushless electric motor operates without engine oil, spark plugs, or fuel filters, routine maintenance mainly involves keeping the cutting deck clear and storing the battery and charger in a protected indoor area.

What equipment comes inside the box?
The package includes the Greenworks 80V 21-inch push lawn mower, one 4.0 Ah battery, a matching fast charger, and a grass collection bag.

How much lawn can this mower cut on one battery charge?
The included 4.0 Ah battery is rated to cut up to a half acre per charge under standard lawn conditions.

Is this unit a self-propelled lawn mower?
No, this model is a push lawn mower, meaning you supply the manual effort to guide the machine across your yard.

What are the four cutting functions?
The 4-in-1 deck system allows you to mulch clippings, collect grass in the rear bag, discharge cuttings out the side, or perform turbo leaf pickup.

Does the 80V battery work with other Greenworks tools?
Yes, the included 80V battery is compatible with more than 75 other Greenworks 80V tools, including chainsaws, string trimmers, and leaf blowers.