PowerSmart 40V 21" Cordless Lawn Mower Review: Who It Fits and Who Should Skip It
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This powersmart 40v 21 cordless lawn review covers a push mower built for small to medium lawns. It features a 21-inch steel deck and runs on 40V power. The listing includes two 4.0Ah batteries, which doubles runtime to handle up to a quarter acre. One battery covers an eighth of an acre. The unit weighs 56.4 pounds and measures 22.3 inches in length. You get instant starts and quiet operation from the brushless motor. This setup targets homeowners who want low maintenance without gas fumes. The design prioritizes durability and ease of use over advanced features.
What stands out
- Two 40V 4.0Ah batteries included for extended runtime
- 21-inch steel deck for durable cutting performance
- Brushless motor for quieter and efficient operation
- Six-position height adjustment from 1.5 to 3.9 inches
- 2-in-1 design for mulching or rear bag collection
Who it fits
Good fit for
This mower suits homeowners with lawns up to a quarter acre. If you have a small yard, the two-battery pack gives you enough power to finish without swapping. The 21-inch cutting width covers ground efficiently. You will appreciate the instant start and lightweight design if you prefer ease over complexity. The steel deck offers better durability than plastic alternatives. It is also ideal for those who want to mulch clippings or bag them with a simple lever adjustment.
Who should skip it
You should look elsewhere if you need self-propulsion. This model is a push mower, so you must provide the forward motion. It lacks advanced smart features or app connectivity. If your lawn exceeds a quarter acre, the battery runtime may not be sufficient for a single charge. The unit does not include side discharge options, only mulching or bagging. Those who prefer larger cutting widths or heavier duty commercial equipment will find this model too basic.
Verdict: This is a practical, durable option for small yards. It delivers solid performance for the price point.
Key specs explained for this mower
40V Voltage
This voltage indicates the electrical power level available to the motor. Higher voltage generally means more torque and consistent cutting speed, especially in thicker grass. You get reliable performance without the noise and maintenance of gas engines. When comparing models, look for 40V or higher for medium-sized yards.
4.0 Ah Battery Capacity
Amp-hour capacity measures how much energy the battery stores. A 4.0 Ah battery provides a specific runtime before needing a recharge. With two batteries included, you can swap them out to keep working without downtime. This setup allows you to cover up to a quarter acre on a single charge cycle.
21" Cutting Width
The cutting width determines how much grass the blade clears in one pass. A 21-inch deck is a standard size that balances efficiency with maneuverability. You will need fewer passes to cover a small to medium lawn compared to narrower models. This width helps you finish your yard work faster.
Push Drive Type
This mower relies on manual pushing rather than a motor to move forward. It is lightweight and simple to operate, making it ideal for flat lawns. You control the speed entirely. If you have hilly terrain or a large yard, a self-propelled model might be easier, but this works well for level ground.
Steel Deck
The deck is the housing that holds the blade. A steel deck is more durable and rigid than plastic alternatives. It resists damage from rocks and debris better over time. This material choice ensures long-term structural integrity and efficient grass discharge, which is important for consistent mulching or bagging performance.
Build quality and physical layout
The PowerSmart MB2400B features a 21-inch steel cutting deck. According to the listing, this material is sturdier than plastic alternatives, which helps maintain efficient cutting performance over time. The mower measures 59.4 inches in width, 37.2 inches in height, and 22.3 inches in length. It weighs 56.4 pounds. This weight classifies it as a lightweight push mower, making it easier to maneuver around your yard compared to heavier gas models.
The design includes a single lever for height adjustment. You can select from six positions, ranging from 1.5 inches to 3.9 inches. This allows you to tailor the cut height to your grass conditions. The unit also offers a 2-in-1 configuration. You can choose to mulch clippings or collect them in the rear bag, which is included in the box.
The finish combines black and red colors. The push drive type means you provide the forward motion, which reduces mechanical complexity. The battery-powered start is instant, eliminating pull-cord maintenance. The quick-swap battery design allows you to replace the 4.0Ah packs without downtime. This layout suits homeowners who want a simple, durable tool for small to medium lawns.
Setup and everyday use guide
Setting up this mower is straightforward because the listing includes two 40V 4.0Ah batteries and a charger. You do not need to mix fuel or adjust carburetors, which removes a common maintenance step found in gas models. The quick-swap battery design allows you to insert the power source directly into the housing. This system supports instant starts, meaning you can begin mowing immediately without pull-cords or priming. The unit weighs 56.4 pounds, making it lightweight for easy maneuvering around your yard. You control the cutting height using a single lever with six adjustment settings. This lets you select a height between 1.5 inches and 3.9 inches, allowing you to optimize the cut for different lawn conditions. The 21-inch steel deck provides a durable cutting surface that is sturdier than plastic options. You can choose between mulching or collecting clippings in the rear bag with the 2-in-1 design. Runtime depends on your battery configuration. One 4.0Ah battery covers up to an eighth of an acre. Two batteries double the runtime, handling up to a quarter of an acre. This makes the mower suitable for medium-sized lawns without requiring downtime for recharging. The brushless motor operates quieter than gas engines, reducing noise during operation. You also benefit from less overall maintenance compared to traditional powered models. The package includes the mower, batteries, charger, grass collection bag, and manual, ensuring you have everything needed for initial setup. Lifetime tech support is included for assistance if needed.
Before You Buy This Mower
This PowerSmart 40V 21" push mower fits small to medium lawns up to a quarter acre. You must check that your storage space can accommodate its 59.4-inch width and 37.2-inch height. The unit weighs 56.4 pounds, so ensure you can lift it easily. Since it uses 40V batteries, verify compatibility if you own other PowerSmart tools. The steel deck requires occasional cleaning to prevent grass buildup. Unlike self-propelled models in this guide, you must push this mower. This makes it ideal for flat, even terrain. If your yard has slopes, consider a self-propelled alternative. The included charger and two batteries reduce initial setup time. You still need to manage the grass bag or mulching chute. Regularly inspect the blade for dullness to maintain cut quality. This model suits buyers who prefer lightweight, manual operation. It is not for large or hilly properties. Check your local regulations for battery disposal. Ensure you have a dry place to store the charger. This mower is a practical choice for simple, flat yards.
Check before you buy
- Confirm your yard is flat and under a quarter acre.
- Measure your storage space for the 59.4-inch width.
- Check if you own other 40V PowerSmart tools.
- Ensure you can lift 56.4 pounds easily.
The product at a glance
PowerSmart 40V 21" Push Mower
Best for: medium yards up to 1/4 acre
- Power Source
- Cordless battery
- Cutting Width
- 21 in
- Voltage
- 40V
- Drive Type
- Push
- Battery Capacity
- 2 x 4.0Ah
- Deck Material
- Steel
View on Amazon: PowerSmart 40V 21" Push Mower Affiliate link
This PowerSmart mower features a 21-inch steel deck and a brushless motor. It includes two 40V 4.0Ah batteries, which double the runtime to handle up to 1/4 acre. The unit weighs 56.4 pounds and offers six height settings. You get instant starts and quiet operation. This setup suits medium-sized yards where you want extended runtime without swapping batteries mid-cut.
Pros
- Includes two 40V 4.0Ah batteries for extended runtime
- 21-inch steel deck provides durability
- Brushless motor runs quietly
- Six height adjustment settings from 1.5 to 3.9 inches
Cons
- Push design requires physical effort
- 56.4-pound weight may be heavy for some users
- No self-propulsion system included
Good fit if
- You have a yard up to 1/4 acre
- You prefer the durability of a steel deck
- You want quiet operation for early morning mowing
Skip if
- You need self-propelled assistance for slopes
- Your lawn exceeds 1/4 acre
- You want a lighter unit under 50 pounds
Verdict: PowerSmart 40V 21" Push Mower fits owners of medium yards who value runtime and deck durability over self-propulsion. It is a solid choice if you can manage the push weight.
Specifications side by side
| Spec | PowerSmart 40V 21" Push Mower |
|---|---|
| Power Source | Cordless battery |
| Cutting Width | 21 in |
| Voltage | 40V |
| Drive Type | Push |
| Battery Capacity | 2 x 4.0Ah |
| Deck Material | Steel |
| Cutting Height | 1.5 to 3.9 in, 6 positions |
| Mowing Function | Mulch, bag |
| Motor Type | Brushless |
| Application | Lawn |
| Dimensions | 22.3 × 59.4 × 37.2 inches |
| Weight | 56.4 pounds |
| Size | 1 pcs Pack of 24 |
| Color | Black & Red |
| Model | MB2400B |
Frequently asked questions
Is the PowerSmart 40V 21 inch mower self-propelled?
No, this model is a push mower. You must provide the physical force to move it across the lawn. The listing specifies a push drive type rather than a self-propelled system. This design keeps the unit lighter but requires more effort from you during operation.
How many batteries does the PowerSmart mower include?
The listing includes two 40V 4.0Ah batteries. This dual-battery setup allows you to swap them out or use them sequentially to extend runtime. The included capacity supports cutting areas up to a quarter acre without needing additional purchases.
What is the cutting width of this PowerSmart mower?
The cutting deck is 21 inches wide. This width determines the amount of grass cut in a single pass. A 21-inch deck offers a balance between maneuverability in tight spaces and efficient coverage for medium-sized yards up to a quarter acre.
How heavy is the PowerSmart MB2400B mower?
The unit weighs 56.4 pounds. This weight includes the chassis and the batteries. Since it is a push mower, you must lift and maneuver this mass yourself. Ensure you have the strength to handle this weight, especially on inclines.
Can this mower handle thick or tall grass?
The 40V power source provides sufficient torque for consistent cutting speeds. Higher voltage generally helps maintain performance in thicker grass compared to lower voltage models. The steel deck also aids in durability during tough cutting conditions.
What is the maximum lawn size for this mower?
This mower is best suited for medium yards up to a quarter acre. The two included 4.0Ah batteries provide enough runtime to cover this area. If your lawn exceeds this size, you may need to recharge or swap batteries mid-job.
Does the PowerSmart mower have a steel or plastic deck?
It features a 21-inch steel cutting deck. Steel is generally sturdier than plastic alternatives and helps maintain efficient cutting performance over time. This material choice contributes to the mower's overall durability and resistance to impacts from debris.