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Kobalt KLB 2040A-03 - 40V 600 CFM Cordless Brushless Blower

The Kobalt KLB 2040A-03 is a cordless handheld leaf blower delivering up to 600 CFM and 130 MPH. It is powered by a 4.0Ah 40V battery. (Read full specs)

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Kobalt KLB 2040A-03 600 CFM Cordless Blower
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Price history for the Kobalt KLB 2040A-03

Lowest price $109
Highest price $159
Current price $159

Description

Zoom on the Kobalt KLB 2040A-03

The Kobalt KLB 2040A-03 in use

The Kobalt KLB 2040A-03

The Kobalt KLB 2040A-03 is a cordless handheld blower that is appropriate for homeowners with residential properties where lawns or gardens fall between a quarter and half an acre.

It is rated for a maximum air volume of 600 cubic feet per minute (CFM) and a maximum air speed of 130 miles per hour (MPH). For the user, this translates into a blower that should move leaves effectively across lawn sections and hard surfaces, while also being capable of shifting compacted leaves or light yard debris like twigs.

This cordless blower is powered by a 40V brushless motor, allowing unrestricted movement during use. It comes with one 4.0Ah battery which can provide up to 70 minutes of runtime on a full charge.

The Kobalt KLB 2040A-03 features customizable airflow through its variable speed settings and effortless speed maintenance with built-in cruise control.

With a bare tool weight of 5.6 lbs and 8.1 lbs when fully equipped, this handheld unit supports one-handed use in tight areas. On the unit's handle, an intuitive display with LEDs allows you to instantly see the battery level and at what speed the blower is running.

The Kobalt KLB 2040A-03's performance versus other blowers

The following charts are provided to give you an idea how the key specs of the Kobalt KLB 2040A-03 compare with handheld leaf blowers of similar voltage (between 36 and 48V).

Important: All figures are based on published specifications. Because manufacturers may test at different power levels or under different conditions, use the autonomy/runtime efficiency figures as a guideline only.
  • Compared to its counterparts, the Kobalt KLB 2040A-03 has a fairly standard bare tool weight at 5.6 lbs. Should weight be a deciding factor, the Black+Decker LSW40C is worth a look at just 2.4 lbs the bare tool.
  • At full power, this blower maxes out at 130 MPH, placing it on the lower end in terms of air speed for battery-operated handheld blowers between 36 and 48V. For the fastest air speed in this category, you may want to consider the Husqvarna 350iB, which can expell air at a velocity that can reach 200 MPH.
  • If air volume is an important feature, the KLB 2040A-03 by Kobalt will not disappoint. Its airflow maxes out at 600 CFM (cubic feet per minute), which is more powerful than most cordless handheld blowers with a comparable voltage. If air volume is important to you, the Husqvarna 350iB, with 800 CFM, could be in your good books.
  • When compared to other cordless handheld units operating within the range of 36V to 48V, the KLB 2040A-03 offers standard autonomy, providing up to 70 minutes of runtime with a fully charged battery. If autonomy is an important factor for you, the Stihl BGA 200 can run for up to 535 minutes and could be worth considering.
  • The Kobalt KLB 2040A-03 stands out for its high runtime efficiency, making effective use of its battery capacity to extend operation time. If runtime efficiency matters most to you, you might look at the Stihl BGA 50, which delivers a higher runtime efficiency of 0.8 minutes per Wh.

Price comparison

As you can see from these interactive charts, when compared to other 36-48V cordless blowers, the Kobalt KLB 2040A-03 is on the average side of the price range.

Therefore, this blower nicely fits in the expected budget for this kind of product.

The bottom line

STRENGTHS:
  • In the expected price range
  • 5 year (limited) warranty
  • Brushless motor
  • Cruise control
  • Convenient display
  • High CFM (600 CFM)
  • Excellent power efficiency
AVERAGE SPECS:
  • Decent bare tool weight (5.6 lbs)
  • Good autonomy (70 mins)
WEAKNESSES:
  • Low MPH (130 MPH)

Do you own the Kobalt KLB 2040A-03 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

Type
TypeCordless
HandlingHandheld
Air volumeUp to 600 CFM
Air speedUp to 130 MPH
Blowing forceUp to 15 N
Motor
Motor type
Brushless
Battery system40V Li-ion
Battery capacity4.0Ah (160Wh)
Autonomy70 mins
Speed settingsVariable / Turbo
Features
Battery included1 x 4.0Ah (KB 440-03)
Cruise controlYes
Noise rating60 dB
Misc
Weight (w/ battery)8.1 lbs
Weight (tool only)5.6 lbs
Warranty5 years
UPC195532006825

We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.

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About Kobalt

Kobalt is an American tool brand introduced in 1998 and distributed mainly by Lowe’s. Produced through partnerships with manufacturers like J.H. Williams, Kobalt focuses on accessible, homeowner-oriented equipment. Its leaf blowers are primarily cordless models, competing with brands such as Craftsman and Husky. Certain models share design and manufacturing origins with products from Greenworks.

Warranty Information

The Kobalt KLB 2040A-03 is covered under a warranty for up to 5 years. This warranty may not cover all parts of the blower.
For more information about the warranty of Kobalt blowers, please consult Kobalt's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-888-3-KOBALT (888-356-2258).

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