The Black+Decker LSW321 is a lightweight cordless handheld leaf blower delivering 100 CFM at 130 MPH. It features a 2 Ah 20 V Li-ion battery. (Read full specs)
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Features and Specifications
Type | Cordless |
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Handling | Handheld |
CFM | Up to 100 |
MPH | Up to 130 |
Blowing Force | N/A |
Brushless | No |
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Voltage | 20 V |
Speed settings | 1 |
Battery | Li-ion |
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Autonomy | 25 mins |
Vacuum | No |
Battery included | 1 |
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Weight (w/ battery) | 3.7 lbs |
Weight (tool only) | 2.8 lbs |
Noise rating | 54 dB |
Warranty | 2 years |
Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue. Should you wish more detailed specs on the Black+Decker LSW321, the user manual is available here (opens in a new tab).
Description
Overview of the Black+Decker LSW321
- Power: This cordless leaf blower has a maximum air volume rating of 100 cubic feet per minute (CFM) and an air speed rating of 130 MPH.
- Power delivery: The LSW321 is a battery-operated unit, so it doesn’t need to be plugged in during use. Users will enjoy the added mobility of its cordless design.
- Battery: It has a 2 Ah 20 V Li-ion battery (1 LBXR2020 battery included) that should work reliably for up to 25 minutes if completely charged.
- Handling: For those who are looking for a portable and convenient leaf blower, this model is a strong candidate. It’s designed for easy handling and use, and its size means it’s easily carried and stored. When compared to other cordless handheld blowers, the Black+Decker LSW321 stands out due to its lower weight: just 3.7 lbs battery included.
- Speed Settings: The LSW321 by Black+Decker has just one speed setting.
- Noise: With a decibel rating of 54 dB, the LSW321 is neither louder nor quieter than its rivals in the electric handheld category.
Product Videos
The Black+Decker LSW321's performance versus other blowers
The following charts are provided to give you an idea how the key specs of the Black+Decker LSW321 compare with similar leaf blowers.
- Its max air speed of 130 MPH places it at the approximate midpoint in comparison to other battery-operated handheld blowers. If you wish to benefit from air expelled at the fastest possible speed, the Makita XBU01PT and its 208 MPH could be an option to consider.
- Its max air volume rating (100 cubic feet per minute) means it is really not the biggest air producer of cordless handheld blowers. For the highest air volume, you may want to have a look at the Husqvarna 350iB, which boasts with 800 CFM.
- Users can expect a maximum autonomy of 25 minutes from its battery, which means the LSW321 won't run as long as many other cordless handheld units before needing to be plugged in. To enjoy the best possible autonomy in this category, you could have a look at the Makita CBU01Z which offers up to 300 minutes of runtime.
Here's a list of the most popular specific comparisons:
Price comparison
As you can see from this interactive chart, when compared to other cordless blowers, the Black+Decker LSW321 is on the cheap side of the price range.
It can therefore be a really good buy if you're looking to acquire a budget blower.
POWERBOOST Technology

POWERBOOST is one of the features of the POWERCOMMAND™ line of Black+Decker outdoor power tools. The Black+Decker LSW321 has a button that gives it a surge in blowing speed when pressed. Although POWERBOOST uses a lot of power (which drains the battery faster) , it is quite useful for loosening up those stubborn patches of debris that get stuck and otherwise refuse to budge. When POWERBOOST is used sparingly, the LSW321 enjoys a normal runtime, so this feature is definitely ideal for tackling less rigorous tasks with more precise control.
The bottom line
- Inexpensive
- Lightweight (3.7 lbs)
- POWERBOOST Technology
- Acceptable noise (54 dB)
- Decent MPH (130 MPH)
- Brushed motor
- No speed variation
- Low CFM (100 CFM)
- Low autonomy (25 mins)
About Black+Decker
The Stanley Black & Decker Corporation is an American manufacturer that has produced and sold quality tools and accessories for over a hundred years. The corporation sells a wide variety of hand tools, power tools, security systems and more through its many subsidiary brands: Stanley, Black & Decker, DeWalt, Mac, Bostitch, and more. Stanley Black & Decker counts itself as a leading global manufacturer of tools and similar products with a market presence in over 100 countries.
Warranty Information
The Black+Decker LSW321 is covered under a warranty for up to 2 years. This warranty may not cover all parts of the blower.
For more information about the warranty of Black+Decker blowers, please consult Black+Decker's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-800-544-6986.
Questions & Answers
I have lost the original box for my LSW3211 blower. Did it come with a battery charger? If not, how do I charge the battery? Thanks. (Asked July 26, 2021)
The unit does come with a battery charger. If you lost it, the LCS1620 (opens in a new tab) is the charger you're looking for.
Couldn't find the right answer for you? Ask your own question.