Greenworks 80V Self-Propelled Mower Guide: 21 or 25 Inch?

Best for: New homeowners needing mower and blower

Pros

• Mower plus 770 CFM blower
• 0Ah battery
• 4-in-1 cutting system

Cons

• One battery shared by two tools
• 21-inch deck only

High score Our score: 9.2/10

Greenworks

Greenworks 80V 21in Self-Propelled Lawn Mower, 8.0 Ah Battery and Charger

9.2/10Our score, based on listed specifications and buyer feedback

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Price and specifications are read from the Amazon product page and can change.

Greenworks 80V 21in Self-Propelled Lawn Mower

Best for: Owners wanting a bigger 8.0Ah battery

Pros

• 0Ah battery included
• Push button start
• 4-in-1 cutting system

Cons

• Listed runtime same as 4.0Ah model
• 90 pounds listed weight

Best for: Half-acre lawns and first cordless mowers

Pros

• Cuts up to 1/2 acre
• Rear wheel drive
• LED headlight
• 4-year limited warranty

Cons

• Listed cutting width 20.28 inches

The Greenworks 80V 21in Self-Propelled Lawn Mower with a 4.0Ah battery (model MO80L416) is the straightforward starting point for a Greenworks 80V 21 inch mower. The listing says it cuts up to 1/2 acre on a full charge, depending on grass and technique, with a brushless motor, a durable steel deck, rear wheel drive with variable speed, and an LED headlight for early or late mowing. Greenworks calls it 3x quieter than gas.

Two terms explained simply. Ah, or amp-hours, measures how much energy a battery holds, so a higher number usually means longer runtime. A brushless motor has no small carbon brushes rubbing inside, which helps efficiency and lifespan. The description mentions a 4-in-1 cutting system and says the motor gives 30% more torque than standard models. It is backed by a 4-year limited tool and battery warranty.

One note: the deck is described as 21 inches, while the listed cutting width is 20.28 inches. The small gap is common because the blade cuts slightly narrower than the deck housing. This mower suits a first-time cordless owner with a lawn up to about half an acre. For larger yards, the 25-inch models cover more ground per pass.

Greenworks

Greenworks 80V 25in Self-Propelled Lawn Mower, 4.0 Ah Battery and Charger

8.6/10Our score, based on listed specifications and buyer feedback

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Price and specifications are read from the Amazon product page and can change.

Greenworks 80V 25in Self-Propelled Lawn Mower

Best for: Bigger lawns up to 3/4 acre

Pros

• 25-inch steel deck
• Turbo leaf pickup
• EZ Fold vertical storage
• Rapid charger included

Cons

• Heavier at 78 pounds
• Listed cutting width 23.96 inches

The Greenworks 80V 25in Self-Propelled Lawn Mower (LMB406) is the Greenworks 80V 25 inch mower sold with a 4.0Ah battery (288 Wh) and a Rapid Charger. The listing says it cuts up to 3/4 acre on a full charge, half again as much as the 21-inch 4.0Ah model.

It shares the brushless motor, steel deck, rear wheel drive, variable speed and LED headlight. The description adds mulching, rear bagging and Turbo Leaf Pickup, a 7-position single lever height adjustment, and EZ Fold aluminum handles that allow vertical storage, which Greenworks says saves 70% more space. The listed weight is 78 pounds and the listed cutting width is 23.96 inches, a little under the 25-inch deck size.

This suits homeowners with bigger lawns who want fewer passes and a battery in the box. If you already own 80V batteries, the dual blade 25-inch model below is sold without one.

This Greenworks 80V 21in Self-Propelled Lawn Mower (model 2552102) comes with an 8.0Ah battery, double the capacity of the 4.0Ah kits. It has a 21-inch steel deck, push button start, and what Greenworks calls Intelligent Brushless Motor Technology with 2x more torque. The 4-in-1 system handles mulching, bagging, side discharge and a turbo mode for leaf pickup, and there is a 7-position height adjustment.

Here the listing needs a caution. Despite the larger battery, it states the same “up to 1/2 acre” coverage as the 4.0Ah 21-inch model, and it does not explain why. The listed dimensions of 45 x 20 x 23 inches and weight of 90 pounds may reflect packaging. Treat the 8.0Ah battery as a clear plus for your other 80V tools, but do not assume double the mowing coverage from this listing alone.

This suits someone planning to build out an 80V tool collection who wants a large battery from day one. If mowing coverage is your only concern, the 25-inch 4.0Ah model lists more acreage.

Greenworks

Greenworks 80V 21" Brushless Cordless (Self-Propelled) Lawn Mower (75+ Compatible Tools), 4.0Ah Battery and 60 Minute Rapid Charger Included

8.8/10Our score, based on listed specifications and buyer feedback

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Price and specifications are read from the Amazon product page and can change.

Greenworks 80V 21″ Brushless Cordless

Best for: Smaller lawns wanting lightest option

Pros

• SmartCut auto power
• 2 pounds
• Vertical storage
• 60-minute rapid charger

Cons

• Up to 45 minutes runtime
• Listing warranty years conflict

The Greenworks 80V 21″ Brushless Cordless self-propelled mower (listed as MO80L00, part number MO80L410) is the lightest option here at 64.2 pounds. It gives up to 45 minutes of runtime on its 4.0Ah battery, which charges with the included 60-minute rapid charger.

Its unique feature is SmartCut technology, which senses grass and automatically adapts power, saving battery in light grass and adding power in thick patches. It has a 21-inch steel deck, rear wheel drive with variable speed, a single lever 7-position height adjustment, 3-in-1 mulch, rear bag or side discharge, push button start, folding handles and vertical storage that uses up to 70% less space. The description mentions a 3-year warranty, while other 80V listings here state 4 years, so confirm the current warranty with Greenworks.

This suits smaller lawns and anyone who wants the easiest mower to lift and store. The 25-inch models are better for large open areas.

Best for: Existing 80V battery owners with large yards

Pros

• Dual blade 25-inch deck
• Dual battery ports
• LED headlight
• Aluminum handles

Cons

• Battery and charger not included

The Greenworks 80V 25″ Brushless Cordless dual blade mower (LMB405) is sold as a bare tool, with battery and charger not included. It is the Greenworks dual blade mower in this lineup, with two blades under a 25-inch deck, and the listing says it can cut up to 3/4 acre with a 4.0Ah battery.

It adds dual battery ports with automatic switchover. When one battery runs down, the mower switches to the second so you can keep mowing, which extends runtime if you own two batteries. It also has a brushless motor, steel deck, rear wheel drive, variable speed, LED headlight and aluminum handles, and it weighs 70.6 pounds.

This suits existing Greenworks 80V owners with large lawns. First-time buyers should pick a kit that includes a battery, such as the 25-inch LMB406.

The Greenworks 80V 21in Mower Blower Kit pairs a 21-inch self-propelled mower with a leaf blower, sharing one 5.0Ah battery and a charger. The mower has a steel deck, push button start, Intelligent Brushless Motor Technology, cuts up to 1/2 acre, and offers the 4-in-1 system and 7-position height adjustment.

The blower is listed at 770 CFM and 180 MPH. CFM, or cubic feet per minute, measures how much air it moves, and MPH measures how fast that air travels. Together they tell you how well it clears leaves and grass clippings. The listing does not detail blower features beyond those figures.

This greenworks 80V mower blower kit makes a practical gift for a first home. Because both tools share one battery, you will mow first, recharge, then blow, unless you add a second battery.