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Kobalt KBB 4240-06 Spec Review

The Kobalt KBB 4240-06 is a cordless backpack leaf blower delivering 690 CFM at 135 MPH. It features a 4 Ah 40 V Li-ion battery. (Read full specs)

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Kobalt KBB 4240-06 690 CFM Cordless BlowerKobalt KBB 4240-06 690 CFM Cordless BlowerKobalt KBB 4240-06 690 CFM Cordless BlowerKobalt KBB 4240-06 690 CFM Cordless Blower

Features and Specifications

Type
Type Cordless
Handling Backpack
CFM Up to 690
MPH Up to 135
Blowing Force N/A
Engine
BrushlessYes
Voltage40 V
Speed settings Variable
Features
Battery Li-ion
Autonomy 200 mins
Throttle positionTube
Cruise controlYes
Vacuum No
Misc
Battery included 2
Weight (w/ battery)22 lbs
Weight (tool only)16.4 lbs
Noise rating 76 dB
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 KBB 4240-06, the user manual is available here (opens in a new tab).

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Description

Overview of the Kobalt KBB 4240-06

  • Power: The KBB 4240-06 is a cordless blower made by Kobalt. It has a maximum air speed of 135 MPH and its nozzle can expel a max air volume of 690 cubic feet per minute (CFM).
  • Power delivery: Since the device is powered by a brushless, battery-operated motor, it doesn’t require to be plugged in and therefore, it allows superb freedom of movement.
  • Battery: With its 4 Ah 40 V Li-ion battery (2 batteries included), the Kobalt KBB 4240-06 has a standard, full-charge run time of up to 200 minutes.
  • Handling: As this unit is a backpack leaf blower, the majority of the unit is distributed so that the user can operate it with ease for most reasonable periods of use. Its throttle is located on the tube, which allows you to keep your left hand free. All told (including the battery), it weighs 22 lbs — the Kobalt KBB 4240-06 is neither the lightest nor the heaviest electric backpack blower on the market.
  • Speed Settings: For those who wish to have complete control while operating their leaf blower, the KBB 4240-06 offers variable speed settings, and moreover, is also equipped with cruise control, which allows the user to comfortably continue blowing at their preferred setting.
  • Noise: Its noise rating of 76 dB can be considered the standard for similar electric backpack blowers.

Product Videos

The Kobalt KBB 4240-06's performance versus other blowers

The following charts are provided to give you an idea how the key specs of the Kobalt KBB 4240-06 compare with backpack leaf blowers of similar voltage (between 36 and 40V).

  • Air expelled from the nozzle of this blower can reach 135 MPH. When compared to others of this type, the KBB 4240-06 has a lower air speed than most battery-operated backpack blowers in the 36 and 40V range. For the fastest air speed in this category, you may want to consider the Echo DPB-5800T, which can expell air at a velocity that can reach 195 MPH.
  • The KBB 4240-06 is powerful, with an airflow rating of 690 CFM (cubic feet per minute). This is certainly on the high end compared to other cordless backpack blowers with a comparable voltage. If air volume is important to you, the Ryobi RY404170, with 730 CFM, could be in your good books.
  • The longevity of this model’s battery is notably higher than most cordless backpack units. It offers an autonomy of up to 200 minutes. If autonomy is an important factor for you, the Makita CBU02Z can run for up to 240 minutes and could be worth considering.

The bottom line

STRENGTHS:
  • Brushless motor
  • Cruise control
  • 5 year (limited) warranty
  • High CFM (690 CFM)
  • Excellent autonomy (200 mins)
AVERAGE SPECS:
  • Decent weight (22 lbs)
  • Acceptable noise (76 dB)
WEAKNESSES:
  • Low MPH (135 MPH)

Do you own the Kobalt KBB 4240-06 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 KBB 4240-06 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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