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Kobalt KLB 1040A-03 - 40V 520 CFM Cordless Brushless Blower

The Kobalt KLB 1040A-03 is a cordless handheld leaf blower delivering 520 CFM at 120 MPH. It features a 4 Ah 40 V Li-ion battery. (Read full specs)

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Kobalt KLB 1040A-03 520 CFM Cordless BlowerKobalt KLB 1040A-03 520 CFM Cordless Blower
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Price history for the Kobalt KLB 1040A-03
Highest Price
$169.00
Lowest Price
$149.00
Current Price
$169.00

Features and Specifications

Type
Type Cordless
Handling Handheld
CFM Up to 520
MPH Up to 120
Blowing Force N/A
Motor
BrushlessYes
Voltage40 V
Speed settings Variable
Features
Battery Li-ion
Autonomy N/A
Cruise controlYes
Vacuum No
Misc
Battery included 1
Weight (w/ battery)7.6 lbs
Weight (tool only)4.8 lbs
Noise rating N/A
Warranty 5 years

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. For full technical details on the Kobalt KLB 1040A-03, the user manual is available here (opens in a new tab).

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Description

Overview of the Kobalt KLB 1040A-03

The Kobalt KLB 1040A-03 in use

The Kobalt KLB 1040A-03

  • Power: The KLB 1040A-03, manufactured by Kobalt, is a cordless blower with a maximum air speed of 120 MPH and a maximum air volume rating of 520 CFM.
  • Power delivery: Kobalt designed this unit and its brushless, battery-operated motor with top-of-the-food-chain maneuverability in mind. The KLB 1040A-03 doesn’t need to be plugged in, so you can take it anywhere easily.
  • Battery: The Kobalt KLB 1040A-03 is powered by an easy-to-recharge 4 Ah 40 V Li-ion battery (1 KB 440-03 battery included).
  • Handling: Designed to be handheld, this blower offers excellent maneuverability, making it effortless to carry and use for short periods. At 7.6 lbs (battery included), the Kobalt KLB 1040A-03 is positioned within the average weight range for cordless handheld blowers, offering a balanced weight profile compared to others in its category.
  • Speed Settings: With its variable speed settings, the Kobalt KLB 1040A-03 allows you to precisely control its air output. In addition, the blower is also equipped with cruise control, with which the user can easily maintain the selected settings.

Product Video

The Kobalt KLB 1040A-03's performance versus other blowers

The following charts are provided to give you an idea how the key specs of the Kobalt KLB 1040A-03 compare with handheld leaf blowers of similar voltage (between 36 and 48V).

  • Air expelled from the nozzle of this blower can reach 120 MPH. When compared to others of this type, the KLB 1040A-03 has a lower air speed than most battery-operated handheld blowers in the 36 and 48V range. 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.
  • It has a maximum air volume output of 520 CFM (cubic feet per minute). With this output rating, the KLB 1040A-03 is well within average in relation to similar 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.

Price comparison

As you can see from these interactive charts, when compared to other cordless blowers, the Kobalt KLB 1040A-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
  • Brushless motor
  • Cruise control
  • 5 year (limited) warranty
AVERAGE SPECS:
  • Decent weight (7.6 lbs)
  • Decent CFM (520 CFM)
WEAKNESSES:
  • Low MPH (120 MPH)

Do you own the Kobalt KLB 1040A-03 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

About Kobalt

Kobalt is an American brand launched in 1998. Kobalt is the product of a partnership between Lowe’s, a leading seller of home improvement and outdoor products, and J.H. Williams, which is one of Lowe’s primary manufacturers. As one of Lowe’s primary outdoor equipment brands, Kobalt has positioned itself to be a major competitor of Craftsman, Husky, and other similar popular brands.

Warranty Information

The Kobalt KLB 1040A-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).

Questions & Answers

How long does it take to charge the Kobalt blower battery? (Asked October 31, 2023)

With the included charger, the 4Ah battery should take a bit under 3h to fully recharge.

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