Updated on September 5, 2026.
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The DEWALT DCMWSP255U2 is an older 2x20V MAX rear-wheel-drive self-propelled mower sold as a kit with two 10Ah batteries. Its steel deck, brushless motor, self-propel system, and broad DEWALT battery compatibility still make it useful for homeowners who already own 20V MAX tools. However, it is a heavy mower, requires both batteries to operate, and has a less convenient two-point height adjustment.
Our verdict: the DCMWSP255U2 can be a sensible buy when it is substantially discounted and you value the two included 10Ah batteries. At a price close to the newer DCMWSP256U2, choose the newer model for its dual-blade system, longer advertised runtime, dashboard, and improved storage design.
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Our reviews are research-based. We compare official specifications, manuals, warranty terms, owner feedback patterns, and competing products. Unless we specifically say otherwise, the product has not been personally tested by our editorial team.
DEWALT DCMWSP255U2 specifications
| Feature | DCMWSP255U2 details |
|---|---|
| Power system | 2x20V MAX; both batteries must be installed |
| Included batteries | Two 20V MAX 10Ah batteries |
| Motor | Brushless, direct drive |
| Drive | Variable-speed rear-wheel self-propel |
| Deck | Steel, roughly 21 inches |
| Cutting modes | Mulching, bagging, and side discharge |
| Cutting height | About 1.5 to 4 inches; front and rear adjustment points |
| Advertised runtime | Up to about 60 minutes under favorable conditions |
| Listed weight | Approximately 85 pounds |
| Warranty | DEWALT typically lists a 3-year limited warranty, 1-year free service, and 90-day satisfaction guarantee for eligible products |
Specifications and package contents can vary by seller. Confirm the model number and what is included before buying, especially when considering an open-box or third-party listing.
How the two-battery system works
The name “2x20V MAX” can be confusing. The DCMWSP255U2 is designed to run with two compatible DEWALT 20V MAX batteries installed at the same time. It is not a mower that runs normally on one battery and then automatically switches to a second spare.
The kit’s two 10Ah batteries provide substantial capacity and can also be useful in other compatible DEWALT 20V MAX tools. That ecosystem value is one of the strongest reasons to consider this older mower. Owners starting from scratch should compare the complete kit price with competing mower platforms rather than valuing the batteries in isolation.
Runtime: treat 60 minutes as a best-case estimate
DEWALT promoted up to roughly 60 minutes of runtime for this generation. Actual mowing time depends on grass height, moisture, cutting height, walking speed, self-propel use, blade condition, and how often the motor encounters thick growth. Wet or overgrown grass can shorten runtime considerably.
For a typical maintained suburban lawn, the two 10Ah batteries may provide enough capacity to finish in one session. Buyers with a large property should avoid converting an advertised runtime directly into acreage. Charging time and the cost of a second matched battery pair should be part of the decision.
Cutting and self-propel performance
The brushless direct-drive motor and steel deck are the core strengths. Rear-wheel drive helps on modest slopes and when the bag gains weight. The variable-speed control lets the operator match the mower’s pace, although the drive system is tied to blade operation. You cannot use it like a powered transport mode with the blade switched off.
The mower supports mulching, bagging, and side discharge. Mulching works best when the lawn is dry and only a modest portion of the grass blade is removed. Bagging is useful for leaves or heavier growth, while side discharge reduces clogging when conditions are less tidy.
If the mower overloads in dense grass, DEWALT’s manual recommends slowing down or raising the cutting height. Making a higher first pass is better than repeatedly forcing the motor through an overgrown lawn.
The height adjustment is not single-lever
Some older descriptions call the DCMWSP255U2 a single-lever mower. DEWALT’s documentation identifies two adjustment points, one for the front and one for the rear. Both ends must be set to the same position to keep the deck level. The approximate 1.5-to-4-inch range is useful, but changing heights takes more effort than a true single-point system.
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DCMWSP255U2 vs the newer DCMWSP256U2
| Feature | DCMWSP255U2 | DCMWSP256U2 |
|---|---|---|
| Generation | Older design | Current redesigned model |
| Blade system | Single cutting system | Dual-blade system |
| Advertised runtime | Up to about 60 minutes | Up to 80 minutes using both batteries in succession |
| Height settings | Front and rear adjustment points | Six single-point settings |
| Cutting modes | Mulch, bag, side discharge | Mulch, bag, rear discharge |
| Controls | Conventional controls | LED dashboard for battery, cutting load, and blade-life information |
| Storage | Folding handle | One-touch telescoping/folding handle; DEWALT claims 82% less storage space when vertical |
The newer DCMWSP256U2 is more than a cosmetic revision. DEWALT added a dual-blade system, AutoSense motor control, a dashboard, a simpler height system, and an advertised runtime of up to 80 minutes. DEWALT says that figure is achieved by using the two included batteries in succession, which is a different battery arrangement from the older mower.
Because the discharge setup also changed, owners who prefer a traditional side-discharge chute may still favor the older model. For most buyers, though, the newer mower is easier to recommend if the price difference is modest.
Who should buy the older DCMWSP255U2?
- Existing DEWALT 20V MAX owners: the included high-capacity batteries add value across compatible tools.
- Homeowners with a maintained small-to-medium lawn: the capacity and self-propel drive can reduce stops and pushing effort.
- Discount shoppers: an older-generation kit can make sense when the savings are meaningful.
- People who want side discharge: the original model includes that option, while the newer model emphasizes rear discharge.
It is a weaker fit for anyone who must frequently lift the mower, has limited storage access, routinely changes cutting height, or expects commercial all-day runtime. The self-propel system helps while mowing, but it does not make an approximately 85-pound machine easy to lift.
Pros and cons
Pros
- Two high-capacity 10Ah batteries included in the U2 kit
- Rear-wheel variable-speed self-propel drive
- Durable steel deck and brushless motor
- Mulching, bagging, and side-discharge options
- Useful battery-platform value for DEWALT tool owners
Cons
- Heavy for loading, stairs, or frequent lifting
- Both batteries are required to run the mower
- Front-and-rear height adjustment is less convenient than a true single-point lever
- Advertised runtime can fall in thick, wet, or overgrown grass
- Newer DCMWSP256U2 adds several meaningful improvements
Frequently asked questions
Can the DCMWSP255U2 run on one battery?
No. The manual directs users to install two charged battery packs. Both battery ports are part of the mower’s operating system.
Does the kit include batteries and a charger?
The DCMWSP255U2 kit was sold with two 10Ah 20V MAX batteries and charging equipment. Marketplace listings may differ, so confirm the seller’s “included components” section before ordering.
Is the cutting height controlled by one lever?
No. This older model uses front and rear adjustment points. Set both to matching positions so the deck remains level.
Can the self-propel system move the mower without the blade?
The operating instructions tie the self-drive control to blade operation. Plan to push it manually when the blade is not engaged.
Is the DCMWSP255U2 better than the DCMWSP256U2?
Usually no. The DCMWSP256U2 has the stronger feature set. The older mower’s main advantages are potential clearance pricing, its included battery value, and side discharge.
What warranty applies?
DEWALT’s current U.S. warranty program generally includes a three-year limited warranty, one year of free service, and a 90-day money-back guarantee for eligible products. Coverage can depend on the seller, proof of purchase, product condition, and region, so verify the terms for the specific listing.
Final recommendation
The DEWALT DCMWSP255U2 remains a capable cordless mower, particularly for homeowners already invested in DEWALT’s 20V MAX platform. Its batteries, steel deck, self-propel drive, and three cutting modes are practical. Its weight, two-point height adjustment, and older control system keep it from being our first choice at full price.
Buy it when the complete kit is clearly less expensive than the DCMWSP256U2 and the seller is reputable. If prices are close, the current DCMWSP256U2 offers the better ownership experience.
Check today’s DEWALT DCMWSP255U2 price on Amazon
Sources checked for this update
- DEWALT DCMWSP255 instruction manual
- DEWALT mower cut-height guidance
- DEWALT DCMWSP256U2 product page
- DEWALT U.S. and Canada warranty information