# DeWalt 21.5" Cordless Mower *Published: 2026-04-06 | Updated: 2026-04-06 | Source: https://shopsavvy.com/products/dewalt-21.5"-cordless-mower* --- **Brand:** DEWALT **Price Range:** $22 - $696.87 across 50 retailers ## Pros - Powerful motor with an auto-sensing feature that adjusts RPM based on mowing needs, delivering efficient cutting performance. - Significantly quieter operation compared to traditional gas mowers, making it ideal for noise-sensitive neighborhoods. - Comes with two high-capacity 10AH 20V batteries, providing solid run time to mow a typical front and back yard on a single charge. - Foldable handle and compact design make storage easy, especially for those with limited space. - Eliminates the hassle and mess of oil, gas, and spark plugs, offering a clean, eco-friendly mowing experience. - Light and easy to push despite being a non-self-propelled model, thanks to a comfortable tall handle and smooth wheel adjustment. - Quick assembly—usually around 15 minutes—and adjustable mowing height for different grass lengths add to user convenience. - Strong build quality and durable construction consistent with DeWalt’s reputation for reliable tools. ## Cons - Battery life and performance decline noticeably after only a few uses, leading to disappointing and unreliable runtime for many users. - The mower is better suited for light or occasional use; it struggles with heavy or demanding mowing tasks and rough terrain over time. - Requires multiple battery charges (sometimes two full charges) to complete a typical yard, which can slow down yard work. - Some users report issues with charging the included 10AH batteries or shortening battery lifespan rapidly. - Not self-propelled, so it may require more effort on uneven or larger lawns compared to some electric mower competitors. - Some users feel let down by the product’s durability and long-term reliability despite the strong initial performance. - Manufacturer appears to have discontinued this model, possibly due to these battery and performance concerns. ## Specifications | Attribute | Value | |-----------|-------| | model | DWM21.5 | | mpn | DWM21.5-LIH | | brand | DeWalt | | type | Cordless Battery Push Mower | | power_source | 20-Volt Max Lithium-Ion | | cutting_width | 21.5 in. | | color | Yellow/Black | | weight | Not Specified | ## 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