Greenworks Self-Propelled Lawn Mower 21in

The rear-wheel-drive self-propelled system is the standout here: it helps move the mower across slopes and thick grass, with pace adjustment available as you go. Greenworks pairs it with a 60V brushless motor and two 4.0 Ah batteries, and says the kit can cover up to 3/4 acre per charge, depending on terrain and mowing technique. Four ways to handle clippings and leaves add flexibility for different yard conditions. That makes this a cordless mower aimed at larger lawns, rather than a basic push mower for occasional small patches.

Quick overview

The 21in mower offers a 4-in-1 system: mulch, bag, side discharge, or use turbo leaf pickup. That range is useful if you prefer to mulch during routine mowing but want to collect clippings or clear leaves at other times. An LED headlight is included for visibility when mowing early or later in the day, though the product information does not specify its brightness or runtime.

The kit includes two 4.0 Ah batteries, and the mower is part of Greenworks’ 60V tool system, which the listing says works with more than 75 compatible tools. If you already own tools in that system, the shared battery platform may be a practical reason to consider it. Greenworks also lists a four-year limited warranty for the tool and battery. The product is described as three times quieter than gas mowers, treat that as a manufacturer claim, not a guarantee of a particular noise level.

How to use it

Choose the clipping method that suits the job: mulch for routine lawn care, bag or side discharge when you want to collect or redirect clippings, or turbo leaf pickup for leaves. On a sloped section, the rear-wheel drive and adjustable pace are intended to make it easier to control the mower without pushing it entirely by hand. The LED headlight may also help when your mowing window falls outside bright midday conditions.

Keep in mind that the stated coverage of up to 3/4 acre per charge varies with terrain and technique. Thick grass, slopes, and mowing pace can affect how far the batteries take you, so the acreage figure is best treated as a ceiling rather than a promise for every yard. The listing does not give a charging time or runtime, which makes it harder to plan a long session precisely.

Practical tips

For a yard with a mix of open lawn and sloped areas, you could use the self-propelled drive where pushing takes more effort, then adjust your pace for tighter passes. Switching between mulching and bagging lets you choose whether to leave clippings in place or gather them, while side discharge offers another option when collection is not the goal. That versatility can matter more than extra features if your lawn changes through the season.

It makes sense if you want cordless operation, self-propelled assistance, and several ways to manage grass and leaves in one mower. Compared with a simpler push mower, this setup adds drive assistance and multiple handling modes, compared with a gas mower, it avoids fuel and emissions, though the available information does not establish how it performs against a specific gas model. It might not be a great match if you need a guaranteed coverage figure, since actual results depend on the yard and mowing conditions.

Before you decide

Does it include batteries? Yes. The kit is listed with two 4.0 Ah batteries.

Can it help on slopes? It has rear-wheel-drive traction and on-the-go pace adjustment, features intended to make slopes and thick grass easier to manage.

What warranty is listed? Greenworks lists a four-year limited warranty covering the tool and battery.

Should you buy it?

Choose this Greenworks if self-propelled mowing, a 21in deck, and four clipping or leaf-handling options fit the way you maintain your yard. Its battery kit and stated 60V tool compatibility may also appeal if you want to build around that cordless system. Look elsewhere if your decision depends on a firm acreage-per-charge guarantee or detailed runtime and charging figures: those specifics are not provided, and the stated coverage can vary with terrain and technique.