Black+Decker 40V Cordless Leaf Vacuum Review (2026): LSWV36

Black+decker 40v cordless leaf vacuum review: the specs at a glance

Specifications are manufacturer rated, as published on the listing and collected 19 October 2026.

Who the BLACK+DECKER LSWV36 is for

This kit is for the homeowner who wants one tool to blow leaves off the driveway and then vacuum them up: 120 mph air speed for clearing, a vacuum mode with 6:1 mulching for collecting, and a 40V battery with charger so there is nothing else to buy. The 5.4 lb blower weight suits quick sessions, while the 6-speed dial lets you trade power for runtime. The built-in scraper is for matted leaves stuck to the pavement, and the soft grip handle is for comfort during longer cleanup. If your fall cleanup is mostly hard surfaces, driveways, decks, garages and patios, this is squarely your tool.

The pick

BLACK+DECKER LSWV36, a 40V cordless sweeper and vacuum kit with 120 mph air speed, 6-speed dial, 6:1 mulching, built-in scraper and collection bag, battery and charger included, backed by a 3 year warranty.

What 120 mph and 6:1 mulching mean in practice

Air speed is what moves leaves: 120 mph is a solid residential figure for clearing dry leaves and light debris off hard surfaces. The 6-speed dial, run through the POWERCOMMAND control, is the useful part: low speeds stretch the battery for light sweeping, high speeds give maximum power for stuck debris. In vacuum mode the mulching fan chops what it collects at a 6:1 ratio, so six bags of leaves become one bag of mulch. That ratio is the whole point of the vacuum function: without it you would be emptying the collection bag constantly. The listing does not state the bag capacity or the battery runtime, so treat both as unknowns until you confirm them.

What the LSWV36 does well

Real speed with real control

120 mph with six speeds is a genuine range, not a two-mode token. The POWERCOMMAND dial lets you pick maximum runtime for sweeping the patio or maximum power for the gutter line, and the charge indicator shows what the battery has left.

6:1 mulching in vacuum mode

The headline feature. Six bags down to one means fewer trips to the curb or the compost pile, and the shredded output is better mulch than whole leaves. This is what separates a sweeper/vacuum from a blower alone.

Complete kit, 3 year warranty

Battery and charger in the box means there is nothing else to buy to get started, and the 3 year warranty is stated plainly in the spec table. For a cordless outdoor tool, a stated multi-year warranty is worth noting.

Light in blower mode

At 5.4 pounds the blower is easy to carry for quick jobs, and the soft grip handle and low-noise design make longer sessions less of a chore. The built-in scraper on the blow tube handles matted leaves without a separate tool.

Limitations to know before you buy

6.9 pounds in vacuum mode

The vacuum tube and collection bag add a pound and a half over blower mode. That is the nature of the tool, but if your arms tire easily, plan shorter vacuum sessions or stick to blower mode.

No runtime figure stated

The listing claims long runtime for the 40V MAX battery but gives no minutes, at any speed. Runtime is the number that decides whether one battery covers your yard, and it is missing. Ask the seller or check owner reports before you buy.

Bag capacity not stated

The 6:1 ratio is only half the story; the collection bag size is the other half, and the listing does not give it. A small bag still means frequent stops even with good mulching.

Vacuum mode is described for hard surfaces

The listing describes vacuuming debris from hard surfaces like driveways and decks. Vacuuming leaves off a lawn is a different job, and the listing does not claim it. If your leaves sit on grass, the blower moves them but the vacuum may not collect them.

Getting the most from the 40V battery

Use the low speeds for open sweeping and save the top speeds for stuck debris and the scraper work; that is how you stretch an unstated runtime. The 6-speed dial is the tool’s real range control: speed one sips the 40V battery for patio touch-ups, while the top speed spends it at 120 mph for the gutter line. Keep the battery on the charger between sessions so it starts full, and watch the charge indicator rather than guessing. In vacuum mode, let the 6:1 mulching do the work: steady passes fill the bag with shredded material instead of whole leaves, and the collection bag, tube and blow tube all swap without tools since the kit includes each. After the season, store the battery indoors on a partial charge, as you would any lithium-ion pack.

Think of the kit as two tools sharing one battery. In blower mode at 5.4 lb it is the quick-grab tool for the porch, the car and the walkway. In vacuum mode at 6.9 lb it is the fall cleanup tool for the driveway and deck, where the 6:1 mulching turns a weekend of bagging into a few trips. The 3-year warranty covers the whole kit, so register it and keep the receipt with the manual.

Who should skip the BLACK+DECKER 40V leaf vacuum

Skip it if your cleanup is all lawn with no hard surfaces, since the vacuum mode is described for driveways and decks. Skip it if you need a stated runtime or bag capacity before buying, because the listing gives neither. And skip it if you already own 40V tools on another battery platform and do not want a second charger on the shelf.

Matching it to your property

On suburban lots under an acre with a driveway, patio and deck, this kit covers fall cleanup in one purchase: blow the hard surfaces, vacuum and mulch what collects. On larger properties the unstated runtime becomes the question, since one battery may not finish the job; that is where the 6-speed dial earns its keep, with low speeds stretching each charge across more ground. In spring it handles leftover debris and grass clippings on paths; in summer it is a quick blower for the patio at 5.4 lb. Year-round, keep the collection bag empty and dry between uses so the mulched material does not cake inside it.

FAQ: mowing large lots

Does the LSWV36 come with a battery and charger?

Yes. The listing names it a combo kit and lists the battery, charger, blow tube and vacuum tube among the included components.

How fast does it blow?

120 mph maximum air speed, adjustable through the 6-speed dial. Use lower speeds for longer runtime and higher speeds for maximum power.

What does 6:1 mulching mean?

The vacuum’s mulching fan reduces six bags of collected leaves to about one bag of shredded material, so you empty the collection bag far less often.

How heavy is it?

5.4 pounds in blower mode and 6.9 pounds in vacuum mode with the tube and bag attached.

Can it vacuum leaves off the lawn?

The listing describes vacuum mode for hard surfaces such as driveways, decks and garages, and does not claim lawn vacuuming. The blower moves leaves anywhere; collection is described only for hard surfaces.

What warranty does it have?

The spec table states a 3 year warranty. Keep the receipt and register the tool if the manufacturer asks.

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