DeWalt Lawn Mower Review

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Written by:

Updated June 27, 2022
92 Expert Rating

You do not have to look far for the best electric lawn mower to rely on, not while DeWalt lawn mower’s like the DeWalt 20-inch Cordless Lawn Mower exist. Featuring a wide cutting diameter and solid performance, this is the electric lawn mower that keeps a small yard looking good.

Why We Like It – DeWalr Lawn Mower

With great build quality and reliable performance, the DeWalt 20-inch 20V Cordless Lawn Mower provides the perfect introduction to battery-powered lawn mowers.

  • Reliable performance
  • Battery-powered
  • Easily stored
  • Battery leaves much to be desired


Achieving a high quality cut job is easy for the DeWalt 20V Electric Mower. Making use of two 20V MAX batteries and a brushless motor—unlike the corded Sun Joe MJ401E-PRO—you can slice through wet and dry grass. However, the biggest issue is battery life.

You get not one DeWalt battery, but two batteries—MAX DeWalt batteries, to be specific. You need both batteries to run; it won’t start with one battery. Even together, run time is only 25 minutes. Anything more than a quarter acre is out of the question. However, it’s compatible with both other DeWalt batteries, such as the 60V FlexVolt batteries.

Related: If you’re looking for something more powerful, then check out our Blacker Decker 60v Powerswap Electric Lawn mower review.


To achieve its great cut quality, this battery powered DeWalt mower makes use of a heavy-duty 20-inch metal deck—matching the Greenworks 25022. Alter deck height by using a single lever for height adjustment. with a single level down to 1.5-inches and up to 3.4 inches. To compound its performance, it comes with mulching bagging, a collection bag for grass, and rear discharging. This makes it a 3-in-1 system, one more system than the American Lawn Mower 50514.

It’s hard to find outdoor power tools that store so easily. The push mower can be folded, and then carried using another handle at the front. To save floor space, you can then stand it up on one end.

See also: If you’re looking for a lawn mower that’s slightly bigger and more powerful, then take a look at our Ego 21-inch 56V Electric Lawn Mower review.


Its performance is excellent, better than most gas mowers, but its MAX batteries leave much to be desired. To really appreciate its power, you’ll have to consider upgrading to brand new DeWalt 60V FlexVolt batteries—especially if your yard is more than a quarter acre. That’s another $184 onto the bill.

Even with the added price of better batteries, the DeWalt Lawn Mower still has good value. It performs well and is built to last. With a set of powerful batteries and proper maintenance, you’ll get quite a few years out of it.

DeWalr Lawn Mower Wrap Up

There’s no doubting the power that drives the DeWalt Lawn Mower. Its 20-inch diameter cuts plenty of grass on its way through. And its foldable design makes for easy storage. Since it’s battery-powered, you can save on buying gas and help the environment. However, the 20V battery should be upgraded to the 60V FlexVolt to get the most out of this electric lawn mower; otherwise, you won’t be cutting for long.

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