20V or 24V Lawn Mowers? Compared by Specs
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You are comparing a 20V vs 24V lawn mower setup for your yard. Both tools use brushless motors and dual 20V or 24V batteries for power. The main difference lies in their voltage configuration and intended function. One is a dedicated mower with a 13-inch deck. The other is a 48V system (two 24V batteries) designed for dethatching and scarifying. This guide breaks down the specs to help you decide which tool fits your lawn care needs.
Key differences
| Aspect | MZK 13-Inch Brushless Cordless Lawn Mower | Sun Joe 48V 15-Inch Cordless Dethatcher and Scarifier |
|---|---|---|
| Voltage | 20V | 48V (2 x 24V) |
| Cutting Width | 13 in | 15 in |
| Mowing Function | Bagging | Dethatching/Scarifying |
| Motor Type | Brushless | Brushless |
| Battery Capacity | 2x 4.0Ah | 2x 4.0Ah |
| Cutting Height | 1.3-2.6 in | -0.375 to 0.4 in |
Which one should you choose?
Choose MZK 13-Inch Brushless Cordless Lawn Mower if
- You need a dedicated mower for cutting grass on small lawns.
- You prefer a lighter, more compact tool for easy storage.
- You want a simple bagging system for grass clippings.
Choose Sun Joe 48V 15-Inch Cordless Dethatcher and Scarifier if
- You need to remove thatch and moss from your lawn.
- You want higher voltage power for deeper lawn care tasks.
- You are looking for a wider working width for efficiency.
Verdict: Choose the 20V mower if you primarily need to cut grass on a small, manageable lawn. Pick the 24V-based dethatcher if your main goal is lawn rejuvenation through scarifying and thatch removal. These are different tools for different jobs, not direct substitutes.
20V vs 24V Mower Specs
Voltage and Power
Product A uses a 20V system powered by two 20V batteries. Product B uses a 48V system created by two 24V batteries. The 48V setup in Product B offers higher voltage potential. Higher voltage typically supports more powerful motor operation. Product A relies on 20V for its brushless motor. This lower voltage is sufficient for basic mowing tasks. Product B combines its 24V batteries to reach 48V. This configuration is designed for heavier duty work like dethatching. You get more raw power potential with the 24V battery pair in Product B.
Cutting Width
Product A features a 13-inch cutting deck. Product B has a 15-inch cutting width. The wider deck on Product B covers more ground per pass. This can reduce the time needed to mow larger areas. Product A’s 13-inch width is narrower. It may require more passes to cover the same area. A 15-inch deck is generally better for efficiency. Product A is suitable for smaller, tighter spaces. Product B is better for broader, open lawns. The extra two inches on Product B provides a clear advantage in coverage speed.
Motor Type
Both products use brushless motors. Product A specifies a brushless motor with speeds of 2800 RPM on low and 3400 RPM on high. Product B also uses a brushless motor, rated at 600W. Brushless motors are efficient and durable. They do not have carbon brushes that wear out. Product A focuses on rotational speed. Product B focuses on wattage output. Both designs offer long-lasting performance. There is no significant difference in motor technology between the two. You get modern, efficient motor performance in either choice.
Mowing Function
Product A is a dedicated lawn mower. It cuts grass and collects it in a 30L bag. Product B is a dethatcher and scarifier. It removes thatch and moss using tines and blades. These are different tools for different jobs. Product A is for cutting grass height. Product B is for lawn maintenance and health. You cannot replace one with the other. If you need to cut grass, choose Product A. If you need to remove thatch, choose Product B. They serve distinct purposes in yard care.
Battery Capacity
Product A uses two 20V 4.0Ah batteries. Product B uses two 24V 4.0Ah batteries. Both have the same amp-hour capacity per battery. However, Product B’s batteries are 24V instead of 20V. This means each battery holds more energy. The total system energy is higher in Product B. Product A provides up to 30 minutes of runtime. Product B’s runtime is not explicitly stated but benefits from higher voltage. You get more energy density with the 24V batteries in Product B.
Which 20V or 24V mower suits you
Small yard owners needing a lightweight mower
Product A weighs just 13 pounds and features a 13-inch cutting deck. This compact design makes it easy to maneuver in tight spaces. The 30-liter grass bag is sufficient for smaller lawns. You get 30 minutes of runtime from two 20V batteries. The brushless motor delivers up to 3400 RPM for efficient cutting.
Users seeking higher voltage for tougher tasks
Product B uses a 48V system created by two 24V batteries. This higher voltage setup powers a 600W brushless motor. It offers a wider 15-inch cutting width to cover more ground. The dual-purpose design handles both dethatching and scarifying. You benefit from 10.6-gallon collection capacity and five depth positions.
Buyers prioritizing ease of assembly and storage
Product A is designed for simple assembly and straightforward use. Its smaller footprint allows for easier storage in sheds or garages. The 2-step safety start prevents accidental activation. You receive two 4.0Ah batteries and a single-port charger in the kit. The 4-position height adjustment ranges from 1.3 to 2.6 inches.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | MZK 13-Inch Brushless Cordless Lawn Mower | small lawns needing lightweight handling | Check price of MZK 13-Inch Brushless Cordless Lawn Mower on Amazon |
| 2 | Sun Joe 48V 15-Inch Cordless Dethatcher and Scarifier | Dethatching and scarifying lawns | Check price of Sun Joe 48V 15-Inch Cordless Dethatcher and Scarifier on Amazon |
The products compared
MZK 13-Inch Brushless Cordless Lawn Mower
Best for: small lawns needing lightweight handling
- Voltage
- 20V (what this guide is about)
- Power Source
- Cordless battery
- Cutting Width
- 13 in
- Drive Type
- push
- Battery Capacity
- 4.0Ah
- Runtime
- Up to 30 minutes
View on Amazon: MZK 13-Inch Brushless Cordless Lawn Mower Affiliate link
The MZK 20V mower uses a brushless motor with 3400 RPM high speed to cut grass efficiently. You get a 13-inch cutting width and a 30L bag for debris. Two 20V 4.0Ah batteries provide 30 minutes of runtime. It adjusts to four heights from 1.3 to 2.6 inches. This compact unit weighs 13 pounds. It suits small lawns where easy storage and maneuverability matter more than wide coverage.
Pros
- Brushless motor delivers 3400 RPM on high speed
- Dual 20V 4.0Ah batteries offer 30 minutes of runtime
- 13-inch deck covers ground with fewer passes
- 30L rear bag simplifies cleanup
- Four height settings from 1.3 to 2.6 inches
Cons
- 13-inch cutting width is narrower than standard models
- 30-minute runtime limits use on larger lawns
- No mulching or side-discharge options listed
Good fit if
- You have a small lawn under 5,000 square feet
- You need a lightweight mower for easy storage
- You prefer dual-battery swapping for extended runtime
Skip if
- You require a cutting width wider than 13 inches
- You need mulching or side-discharge capabilities
- You have a large lawn requiring more than 30 minutes of continuous runtime
Verdict: MZK 20V 13-Inch Brushless Mower is a compact option for small yards. It fits users who prioritize lightweight handling and dual-battery flexibility over wide cutting decks.
Sun Joe 48V 15-Inch Cordless Dethatcher and Scarifier
Best for: Dethatching and scarifying lawns
- Voltage
- 24V (what this guide is about)
- Power Source
- Cordless
- Cutting Width
- 15.0-Inch
- Battery Capacity
- 4.0-Ah
- Motor Type
- brushless
- Dimensions
- 26.5 × 18.8 × 16 inches
View on Amazon: Sun Joe 48V 15-Inch Cordless Dethatcher and Scarifier Affiliate link
This Sun Joe unit is a cordless dethatcher and scarifier, not a standard lawn mower. It uses two 24V batteries to create 48V of power for its 600W brushless motor. The 15-inch cutting width handles moderate lawns. You get five depth positions ranging from -0.375 to 0.4 inches. The 10.6-gallon bag captures debris efficiently. It suits you if you need lawn rejuvenation rather than simple cutting.
Pros
- 48V power from two 24V 4.0Ah batteries
- 600W brushless motor for extended runtime
- 15-inch cutting width for efficient coverage
- 5-position depth control for precise care
- 10.6-gallon collection bag for easy cleanup
Cons
- Limited to dethatching and scarifying, not mowing
- Requires two batteries for operation
- 36.4-pound weight requires careful handling
Good fit if
- You need to remove thatch and moss
- You want a cordless tool for lawn care
- You prefer a brushless motor for durability
Skip if
- You only want to cut grass
- You need a single-battery system
- You prefer a lighter tool under 30 pounds
Verdict: Sun Joe 48V 15-Inch Cordless Scarifier is a specialized tool for lawn maintenance. It fits you if you need to dethatch or scarify your yard with powerful cordless performance. It is not a substitute for a standard mower.
Specifications side by side
| Spec | MZK 13-Inch Brushless Cordless Lawn Mower | Sun Joe 48V 15-Inch Cordless Dethatcher and Scarifier |
|---|---|---|
| Power Source | Cordless battery | Cordless |
| Cutting Width | 13 in | 15.0-Inch |
| Voltage | 20V | 48V (Dual 24-V) |
| Drive Type | push | not stated |
| Battery Capacity | 4.0Ah | 4.0-Ah |
| Runtime | Up to 30 minutes | not stated |
| Cutting Height | 1.3 to 2.6 inches, 4 positions | not stated |
| Mowing Function | Bagging | not stated |
| Motor Type | Brushless | brushless |
| Application | Lawn | not stated |
| Dimensions | 16 × 17 × 9 inches | 26.5 × 18.8 × 16 inches |
| Weight | 13 pounds | 36.4 pounds |
| Size | 13IN | Cordless; 15.0-Inch |
| Color | Red | GREEN |
| Model | ET2601 | 24V-X2-DTS15 |
Frequently asked questions
Is 24V better than 20V for cutting grass?
Higher voltage generally supports more power. The 24V system in this comparison uses two 24V batteries to create a 48V setup. This configuration offers higher voltage potential than the standard 20V dual-battery system. It typically supports more robust performance for tasks like dethatching. The 20V option focuses on lightweight handling for small lawns.
What is the difference between 20V and 24V mower batteries?
The difference lies in the individual battery voltage. One system uses two 20V batteries, while the other uses two 24V batteries. The 24V batteries combine to form a 48V system. This higher total voltage can deliver more power for heavy-duty tasks. The 20V system provides sufficient power for basic mowing in compact yards.
Do 24V mowers weigh more than 20V mowers?
Yes, the 24V model in this list weighs significantly more. It tips the scales at 36.4 pounds. The 20V mower weighs only 13 pounds. The heavier weight comes from its specialized dethatching mechanism and larger frame. The lighter 20V unit is designed for easy maneuverability in tight spaces.
Can I use a 24V mower for small yards?
You can, but it may be overkill. The 24V tool is a specialized dethatcher and scarifier, not a standard mower. It is heavier and wider at 18.8 inches. For small yards, the 13-inch 20V mower is more practical. It offers lightweight handling and fits users who prioritize ease of use over heavy-duty maintenance.
Which mower is lighter to push?
The 20V mower is much lighter. It weighs just 13 pounds. The 24V dethatcher weighs 36.4 pounds. The 20V unit is designed for small lawns needing lightweight handling. Its compact size makes it easy to store and maneuver. The heavier 24V tool requires more effort to move around the yard.
Are both mowers brushless?
Yes, both tools use brushless motors. The 20V mower features a brushless motor for efficient power delivery. The 24V dethatcher also uses a brushless motor. This technology reduces maintenance needs and extends motor life. Both systems rely on cordless electric power sources for operation.
What is the cutting width of the 20V mower?
The 20V mower has a 13-inch cutting width. This narrow deck suits small yards and tight spaces. The 24V dethatcher has a 15-inch width. However, it is designed for dethatching, not standard mowing. The 13-inch width on the 20V unit allows for precise trimming around obstacles.
Is the 24V tool a standard lawn mower?
No, it is not a standard mower. It is a cordless dethatcher and scarifier. It is not a substitute for a standard mower. It fits users who need to remove thatch or scarify their lawn. The 20V tool is the dedicated mower in this comparison, designed for cutting grass.