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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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Features and Specifications

Type
Type Cordless
Handling Handheld
CFM Up to 520
MPH Up to 120
Blowing Force N/A
Engine
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

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 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 Kobalt KLB 1040A-03 is a cordless blower with a maximum air volume rating of 520 CFM and an air speed of 120 MPH.
  • Power delivery: The Kobalt blower features a brushless, battery-operated motor, ensuring cordless operation for superior mobility and convenience, perfect for hassle-free yard work.
  • 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: With its handheld design, this leaf blower was created with portability in mind. Most users will have no problem using it almost anywhere. Including the battery, it registers 7.6 lbs in total weight—the Kobalt KLB 1040A-03 strikes a middle ground among cordless handheld blowers, offering a moderate weight choice for various outdoor tasks.
  • Speed Settings: The Kobalt KLB 1040A-03 offers customizable airflow through its variable speed settings, along with integrated cruise control for convenient operation.

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 blower's nozzle can reach speeds of 120 MPH, indicating a lower air speed, when compared to other battery-operated handheld blowers. For the fastest air speed in this category, you may want to consider the Makita XBU01PT, which can expell air at a velocity that can reach 208 MPH.
  • With a maximum airflow of 520 CFM (cubic feet per minute), this model falls squarely within the average range for cordless handheld blowers. 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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