The Ryobi 40V HP Brushless 21-Inch Self-Propelled Mower from The Home Depot Inc - cordless power for medium yards

Reviewed: ad hoc news B2B & Pro desk. Edited and checked on 2026-06-28, 01:07. Details in the imprint.

The Ryobi 40V HP Brushless 21-Inch Self-Propelled Mower sits on a strip of grass, its lime-green deck humming quietly as you squeeze the handle and feel it gently pull you forward. The plastic control bail has a slightly grippy texture, and the metal deck feels robust when you tap it with your shoe.

What this mower offers

The Ryobi 40V HP Brushless 21-Inch Self-Propelled Mower is a battery-powered walk-behind lawn mower sold exclusively through Home Depot in North America. It belongs to Ryobi's 40V HP cordless lineup, using a 40V lithium-ion battery with high-performance brushless motor technology. The 21-inch deck width aims at typical suburban yards, balancing coverage and maneuverability.

The mower features self-propelled rear-wheel drive with variable speed, controlled by a thumb lever on the handle that lets you match walking pace without feeling rushed. According to Home Depot, it offers 3-in-1 mulching, bagging, and side discharge, with a single-point height adjustment to switch cutting height across the deck in one motion. Many buyers meet it as part of a kit that includes at least one 40V battery and charger, although battery capacity can vary by SKU.

Battery, runtime and noise

Ryobi's 40V HP system is designed for longer runtimes than 18V tools, and Home Depot highlights full-yard coverage for most medium-size lawns on a single charge, depending on grass conditions and battery amp-hours. Reviewers on Home Depot's product page often report mowing 1/3 to 1/2 acre with one 6 Ah battery, noting that thicker spring growth can reduce runtime. When you start the mower, the lack of combustion noise is striking, with a quiet whir rather than the raw drone of a gas engine.

The brushless motor helps improve efficiency and reduces maintenance compared with brushed motors and gasoline engines, since there is no oil, spark plug, or air filter to service. Users also mention the immediate start via a power button and safety key, which avoids repeated pull-start attempts in damp weather. For night or early-morning mowing, integrated LED headlights on some variants add a practical touch, helping you follow the edge of the lawn.

Design details and handling

Home Depot positions Ryobi as its primary exclusive outdoor power equipment brand, and merchandising vice president Jeff Kinnaird has previously described Ryobi's cordless range as central to the retailer's push into battery-powered lawn tools for homeowners. On the mower itself, the handle folds down with side knobs, so you can store the unit vertically against a garage wall in many variants, saving floor space. The deck edge has a smooth but tactile coating, which feels tidy when you lift the front to clear a hose or toy.

The 21-inch deck uses a steel or composite construction depending on version, with a compact rear bag that clicks into place below the handle. Height adjustment works via a single lever on the side of the deck, with multiple preset positions that change cutting height across all wheels at once. A quiet observation from several customer reviews is that the mower's self-propel assist feels smooth rather than jerky once you learn to feather the speed control.

Who Ryobi is targeting

Ryobi's 40V HP series targets budget-conscious homeowners who want cordless convenience but do not need commercial-grade equipment. Tool loyalty is a big part of this pitch, as the same 40V batteries can power leaf blowers, hedge trimmers, chain saws, and other outdoor tools in the Ryobi ecosystem. For a buyer already invested in Ryobi batteries, the mower becomes an incremental purchase rather than a standalone system.

Home Depot also leans on Ryobi as a private-label brand that differentiates its assortment from rivals like Lowe's and regional chains. In-store, the lime-green mowers often sit near DEWALT, Milwaukee, and EGO units, but Ryobi tends to occupy a slightly lower price tier while offering broad accessory support. For renters or first-time homeowners, that combination of price and ecosystem can be convincing.

Price, kit options and availability

The Ryobi 40V HP Brushless 21-Inch Self-Propelled Mower is sold mainly as a kit that includes one or two 40V batteries and a charger, with price varying by configuration and promotional period. On Home Depot's US site, recent listings for comparable Ryobi 40V HP 21-inch self-propelled mower kits cluster in roughly the mid-hundreds of dollars before tax, often around the USD 500 region when bundled with 6 Ah batteries. Price changes are frequent around spring and holiday sales, so checking the current online listing is sensible before purchase.

Availability is focused on the United States and Canada, both online and in physical Home Depot stores. The product is not positioned specifically for the German market, and buyers in Europe face limited direct access to Ryobi outdoor tools in Home Depot channels. Curbside pickup and free shipping thresholds vary by region and by active promotion.

Where it falls short

Customer reviews on Home Depot mention that the mower's weight is noticeable when pushing without self-propel assist, especially on steep slopes. Some users report runtime limitations on heavy, wet grass when using smaller capacity batteries, meaning that a second battery can be helpful for larger properties. In addition, the rear bag capacity may require multiple emptying cycles for dense clippings, which adds time compared with some higher-capacity bags.

Other reviewers note that while noise is lower than a gas mower, the motor whine and blade sound are still present, so ear protection remains advisable. Occasional complaints focus on self-propel control learning curves, with a few customers needing time to adjust to the thumb-operated speed control. Still, many praise the clean cut and easy startup, especially compared with older pull-start units.

Stock context for The Home Depot Inc

The Ryobi 40V HP Brushless 21-Inch Self-Propelled Mower sits inside Home Depot's broader strategy to anchor customers in exclusive brands and battery ecosystems, driving repeat tool and accessory purchases over time. The Home Depot Inc shares (ISIN US4370761029) trade primarily on the New York Stock Exchange in US dollars as part of the Dow Jones Industrial Average component list, and investors regularly watch seasonal demand for outdoor power equipment as one indicator of consumer activity.

This article was AI-assisted and editorially reviewed. Product information without guarantee; prices and availability may change at short notice. No investment advice, no buy or sell recommendation. Stock-market transactions involve risks up to total loss.