Westinghouse
Westinghouse 40V 18-Inch Cordless Push Lawn Mower: Lightweight Brushless Performance
The Westinghouse WMow18T is a lightweight 40V cordless push mower delivering up to 3100 RPM across an 18-inch polymer deck , solid performance for small to medium suburban yards without the hassle of gas models. At just 33 lbs with push-button start and six cutting height positions, it's designed for homeowners who want clean, healthy grass with minimal effort and zero engine maintenance.
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Last updated: . Based on our analysis of 364 lawn mowers.
What Sets It Apart
Key specification highlights based on our analysis.
Considerations
Polymer Cutting Deck
Lightweight but less durable than steel; won't rust
Why We Recommend It
- 01.
Up to 3100 RPM cutting speed handles typical lawn grass efficiently without the noise of gas models
- 02.
Weighs only 33 lbs , easy to maneuver, lift into storage, and transport
- 03.
Push-button start eliminates the pull-cord frustration common with gas mowers
- 04.
6 height positions spanning 1-3 inches let you dial in the right cut for healthy grass at different growth stages
- 05.
Polymer deck is rust-proof and contributes to the light overall weight , good for humid climates
Considerations
- 01.
Sold as tool only , you must purchase a compatible 40V lithium-ion battery and charger separately, adding to upfront investment
- 02.
18-inch deck is efficient for small yards but will require more passes on medium to large properties, extending mow time
- 03.
Polymer deck, while rust-resistant, is less durable than steel under heavy impact or rocky terrain
Technical Specifications
| Feature | Specification |
|---|---|
| Mower Type | Push |
| Power Source | Battery |
| Cutting Width | 18" |
| Deck Material | Polymer |
| Blade Type | Rotary |
| Cutting Height | 1" – 3" |
| Height Positions | 6 |
| Battery | 20V 5Ah |
| Discharge | Bag |
| Weight | 33 lbs |
| Start Type | Push button |
| Warranty | 2 years |
Power & Performance
The Westinghouse WMow18T runs on a 40V motor (battery sold separately) spinning blades at up to 3100 RPM , competitive with many entry-level cordless mowers in this class. That speed is sufficient for maintaining regularly mowed, healthy grass in typical suburban conditions.
It may struggle with tall, overgrown, or thick grass that would demand a higher-torque brushless motor or higher-voltage platform.
Cutting System
The 18-inch rotary deck is constructed from polymer, keeping weight low and eliminating rust concerns , a real advantage over steel decks in wet climates. Six cutting height positions adjust between 1 and 3 inches, giving you control over how short you cut and accommodating different grass types.
Discharge is rear-bag only, so mulching and side discharge are not available on this model.
Drive & Handling
At 33 lbs, this is one of the lighter mowers in the cordless push category, making it easy to push across flat terrain and maneuver around garden beds or tight corners. The adjustable handle height accommodates different operator heights for comfortable mowing sessions.
Since there's no self-propelled drive, it's best suited to level or gently sloped yards , steep inclines will require more physical effort.
Battery / Fuel
The WMow18T is powered by a 40V lithium-ion battery system (5.0Ah capacity noted in specs, sold separately as a tool-only unit). Lithium-ion batteries deliver consistent power throughout the charge cycle , unlike older NiCd designs , and the motor requires no oil changes, spark plugs, air filters, or carburetor maintenance.
Runtime will vary based on grass thickness and yard conditions; having a second battery on hand is recommended for yards approaching the medium-size range.
Who Is This Mower For?
Ideal For
- ✓ Homeowners with small to medium flat yards (up to ~1/4 acre) who want clean mowing results without the hassle of gas models
- ✓ Eco-conscious users who want zero direct emissions and quieter operation to keep neighbors happy
- ✓ Low-maintenance seekers who are done with oil changes, spark plugs, and seasonal fuel system maintenance
- ✓ Those already invested in the Westinghouse 40V battery platform who can skip buying an extra battery
Not Ideal For
- ✕ Large property owners , the 18-inch deck means significantly more mowing passes per session compared to 21-inch or wider decks
- ✕ Hilly terrain users who need self-propelled drive assistance on slopes; this is a push-only mower
- ✕ Buyers who need mulching or side-discharge , this model only includes rear bag discharge
Assembly is required out of the box, though cordless push mowers in this class typically involve attaching the handle and grass bag , a straightforward process that most users complete in under 20 minutes.
Have your 40V battery charged fully before first use to get an accurate sense of runtime on your specific yard
Set the handle height before your first mow , the adjustable handle makes a noticeable difference in comfort over longer sessions
The Westinghouse WMow18T is backed by a 2-year limited warranty covering defects in materials and workmanship, plus lifetime technical support , a strong support commitment that adds long-term confidence to the purchase.
FAQ
Does the Westinghouse WMow18T come with a battery and charger?
No , this is a tool-only listing, meaning the 40V lithium-ion battery and charger are sold separately. If you already own Westinghouse 40V batteries from other tools, they will be compatible.
First-time buyers should entry-level for a battery and charger kit in addition to the mower itself.
How large of a yard can the WMow18T handle on a single charge?
With an 18-inch cutting deck and a 40V / 5.0Ah lithium-ion battery, the WMow18T is rated for small to medium yards. In ideal conditions (flat ground, short grass), expect to cover roughly 1/4 acre per charge.
For medium yards at the upper end of that range, keeping a second charged battery on hand is a practical move.
Can the Westinghouse WMow18T mulch grass clippings?
No , the WMow18T only supports rear-bag discharge. There is no mulching plug or side-discharge chute included.
If mulching is important for returning nutrients to your lawn for healthy grass growth, you'll want to consider a different model that supports that discharge mode.
How quiet is the WMow18T compared to a gas mower?
Cordless electric mowers like the WMow18T operate significantly quieter than gas models , typically in the 75-85 dB range versus 90-95 dB for gas. This makes early morning or evening mowing much more neighbor-friendly.
You can also hold a conversation at close range while it runs, which isn't practical with most gas mowers.
Is the 18-inch deck big enough, or should I get a larger mower?
An 18-inch deck is well-suited for yards up to roughly 1/4 acre and excels in tighter spaces where a wider mower would be cumbersome. If your yard is larger than 1/4 acre or has wide open areas, a 21-inch deck would reduce mowing time meaningfully.
For compact suburban lots, the 18-inch size is often the better choice for maneuverability.
What maintenance does the WMow18T require?
As a cordless electric mower, the WMow18T requires virtually no engine maintenance , there's no oil to change, no spark plugs, and no fuel system to worry about. Routine upkeep includes cleaning the deck after each mow, periodically checking and sharpening the blade, and storing the lithium-ion batteries in a cool, dry place when not in use.
Bottom Line
The Westinghouse WMow18T is a capable, hassle-free cordless mower for homeowners with small to medium flat yards who are ready to leave gas models behind. The lightweight design, push-button start, and zero-maintenance motor make mowing sessions genuinely easier , but the tool-only tier and rear-bag-only discharge mean it's not for everyone.
If you need mulching capability, self-propelled drive, or coverage for a larger property, you'll want to look at a higher-spec model.
Best for flat suburban yards up to 1/4 acre where easy startup, lightweight handling, and zero engine maintenance are top priorities.
Consider alternatives if you need mulching discharge, self-propelled assist for slopes, or wider deck coverage for a larger yard.
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