product image of BLACK+DECKER LSW36 40-Volt Lithium Ion Cordless Sweeper

Our rating: 4.5 stars Very good  

Customer rating: 1700+ reviews

Price: $137.67*        Buy from

* including battery and charger

The BLACK+DECKER LSW36 is a cordless sweeper, designed for lighter tasks mostly on hard surfaces. Easy to use, with solid battery run time and speed adjustment dial, only the power is quite low.

  • Easy to use, not loud
  • Speed control
  • Battery run & recharge time
  • low power
Key specifications:
  • Air speed: 120 mph (adjustable)
  • Air volume: 90 CFM
  • Battery time (according to users): 15-30 minutes
  • (more specifications)


Note: This video shows it with the older 36V battery – but there’s no big difference between those two.

Easy to Use – No Cord, Noise or Mixing Fuel

using the LSW36 to clean a deckThe Black+Decker LSW36 is a part of the large family of small, lightweight blowers designed for light tasks – it’s a bit heavier and more expensive than a typical sweeper, but on the other hand the 40V battery provides a decent working time (especially when compared to the 20V LSW20).

Thanks to its low weight and compact size it’s easy to carry and maneuver (great for women or seniors), the handle has a nice soft grip and the balance is also good.

The engine isn’t loud and you’re saved from all the hassle of gas powered tools like maintenance, mixing fuel or starting – and there’s no cord to drag around which makes it very convenient whenever you need to clean some small area quickly, you just pick it up and use.

The majority of users did not report any problems, only a few wrote the unit started making a strange noise and died after about a year of service.

Don’t Expect Large Power

First, bear in mind this tool is just a sweeper, not a classical leaf blower – so don’t expect the performance of corded or even gas units. Many users gave it a bad rating on Amazon just because they did not consider its intended purpose and expected more power.

It’s designed for cleaning hard surfaces like walkways, decks, patios, pool areas, driveways or garages, moving mostly dry leaves or other debris – and in these conditions it works well. You can use it for a cleanup after mowing, blowing dust and dirt out of your garage and similar lighter tasks.

But it just doesn’t have enough power for collecting leaves on grass, blowing away damp stuff and so on (the built-in scraper helps with wet debris on hard surfaces but it still isn’t ideal).

Speed dial and charge level indicator

Speed Dial – Useful Feature

Another difference from the 20V model is a variable speed control. It’s not that easily accessible (it’s located on the back of the unit, above battery – placing it under your thumb would be probably better), but users like it as you can easily dial the power down for some delicate tasks like working around flowers or to avoid blowing dirt into the pool.

Solid Battery Working Time

The 40 Volt lithium-ion battery offers a decent run time, about 15-30 minutes depending on the selected speed – plus the recharge is also quite fast, about 1 hour. As with other lithium batteries, there is no drop in power as the charge level decreases and you can even check the amount of remaining charge using a button and LED indicators.

Also, the batteries are compatible with other B+D 40V power tools like string trimmer, chainsaw or hedge trimmer.

Conclusion:If you need a lightweight blower for cleaning your sidewalks, decks or garage and don’t want to mess with an electric cord, the BLACK+DECKER LSW36 would be a great choice for you – very easy to use and with a solid battery running time. We can definitely recommend it.

However, the power doesn’t enable any harder tasks – so if you need to blow leaves from grass, collect them into piles or similar jobs, a more powerful unit would be certainly better.

>> Read more or buy the BLACK+DECKER LSW36 here

blowing debris and dust out of your garage      the sweeper on white background


  • Vacuum: no
  • Weight: 4.7 lbs
  • Warranty: 2-year limited
  • Battery: 40-Volt Lithium-ion
  • Battery time (according to users): 15-30 minutes (depending on speed)
  • Battery power indicator: yes

(compare with others)

Frequently asked questions:

How should I treat the battery to ensure maximum lifetime?

Always store the batteries inside your house in reasonable temperatures – never leave them on direct sun or outdoors during winter! It is also advisable to recharge the battery as soon as it is out of power.

Is a charger included?

If you get the version with a battery included, a charger is present as well.

Are there any accessories I should buy?

If you have a large area to clean, consider getting a spare battery as well.

Is there any maintenance needed?

No, the motor is an enclosed unit so no maintenance is required. Just ensure a proper care to the battery (see above) and clean the machine from debris and dirt.


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