Greenworks Cordless Lawn Mower Review

The Greenworks 80V 21-Inch mower is the flagship model for a reason. It uses an 80V brushless motor that delivers torque comparable to a gas mower, easily cutting through thick Bermuda or St. Augustine grass. The 21-inch steel deck is wide enough to cover medium lawns efficiently, and the single-lever height adjustment makes switching between 1.5-inch and 4-inch cuts simple.

Owner reviews on major retail sites highlight the mower's consistent power and the fact that it never bogs down in damp grass. The 4.0 Ah battery provides about 45-60 minutes of runtime depending on grass conditions, which is enough for a typical 1/3 acre lot. The main drawback is the weight -- at 52 pounds, it can be tiring to push on slopes or uneven terrain.

The 40V 16-Inch model is Greenworks' most popular entry-level mower. It is designed for small to medium lawns (up to 1/4 acre) and features a lightweight plastic deck that makes it easy to push and carry. The 40V battery system is shared with many other Greenworks tools, making it a good starting point for building a cordless outdoor toolkit.

Owner reviews consistently praise its ease of use and quiet operation. The mower has a simple push-button start and a single lever for height adjustment. The 16-inch deck is narrow enough to get through tight gates and around flower beds, but it does require more passes on open areas. The 4.0 Ah battery provides about 30-40 minutes of runtime, which is enough for most small yards.

The 60V 20-Inch mower fills the gap between the 40V and 80V models. It uses a brushless motor that produces high torque, making it well-suited for lawns with dense, fast-growing grass. The 20-inch steel deck is a good middle ground for coverage, and the 7-position height adjustment gives you fine control over cut length from 1.25 to 3.75 inches.

Aggregated owner reviews note that this mower handles overgrown lawns better than most cordless competitors. The 60V battery provides about 45 minutes of runtime, and the mower has a convenient push-button start. The main downside is that the 60V battery is not compatible with Greenworks' 40V or 80V tools, which limits ecosystem flexibility.

The 24V 12-Inch mower is a niche tool designed for very small lawns, patios, or as a trimmer for hard-to-reach areas. It weighs only 22 pounds and has a compact 12-inch plastic deck that can fit into tight corners and under low-hanging shrubs. The 24V battery system is shared with Greenworks' smaller garden tools like hedge trimmers and grass shears.

Owner reviews are mixed: many appreciate its portability and ease of use for small jobs, but others note that the 2.0 Ah battery runs out quickly (around 15-20 minutes) and the mower struggles with grass taller than 3 inches. It is best used as a supplemental mower for trimming rather than a primary lawn mower.

The 80V 25-Inch Self-Propelled mower is Greenworks' largest and most powerful cordless mower. It features a variable-speed self-propelled drive that makes it easier to push across large lawns, and the 25-inch stamped steel deck reduces the number of passes needed. The included 5.0 Ah battery provides up to 70 minutes of runtime, which is enough for lawns up to 1/2 acre.

Owner reviews highlight the mower's speed and efficiency on flat terrain, but note that it is heavy (65 lbs) and can be awkward to turn in tight corners. The self-propelled system works well on level ground but may struggle on steep inclines. It is best suited for homeowners with large, open lawns who want to minimize mowing time.