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Kobalt KHB 400B Spec Review

The Kobalt KHB 400B is a cordless handheld leaf blower delivering 500 CFM at 125 MPH. It is powered by a 80 V Li-ion battery. (Read full specs)

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Kobalt KHB400B 500 CFM Cordless BlowerKobalt KHB400B 500 CFM Cordless BlowerKobalt KHB400B 500 CFM Cordless BlowerKobalt KHB400B 500 CFM Cordless Blower
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Set an alert for the Kobalt KHB 400B - Current lowest price: $149.00
Price History
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Price history for the Kobalt KHB 400B
Latest updates:
  • $149.00 - June 24, 2021
  • $199.00 - June 23, 2021
  • $99.00 - June 22, 2021
  • $149.00 - June 17, 2021
Data source: lowes.com
Since: June 17, 2021
  • Highest Price: $199.00 - June 23, 2021
  • Lowest Price: $99.00 - June 22, 2021

Features and Specifications

Type
Type Cordless
Handling Handheld
CFM Up to 500
MPH Up to 125
Blowing Force N/A
Engine
BrushlessYes
Voltage80 V
Speed settings 3
Features
Battery Li-ion
Autonomy 70 mins
Vacuum No
Misc
Battery included 0
Weight 5.7 lbs
Noise rating N/A
Tube length 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 KHB400B, the user manual is available here (opens in a new tab).

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Description

Overview of the Kobalt KHB 400B

The Kobalt KHB 400B in use

The Kobalt KHB 400B

  • Power: This cordless leaf blower has a maximum air volume rating of 500 cubic feet per minute (CFM) and an air speed rating of 125 MPH.
  • Power delivery: Kobalt designed this unit and its brushless, battery-operated motor with top-of-the-food-chain maneuverability in mind. The KHB 400B doesn’t need to be plugged in, so you can take it anywhere easily.
  • Battery: Its 2 Ah 80 V Li-ion battery (battery not included) enables the blower to run for up to 70 minutes without needing to a recharge.
  • Handling: For those who are looking for a portable and convenient leaf blower, this model is a strong candidate. It’s designed for easy handling and use, and its size means it’s easily carried and stored. When compared to other cordless handheld blowers, the Kobalt KHB 400B stands out due to its lower weight: just 5.7 lbs.
  • Speed Settings: Thanks to its 3 speed settings, the Kobalt KHB 400B allows the user to adjust the air output to the task in hand.

Product Video

The Kobalt KHB 400B's performance versus other blowers

The following charts are provided to give you an idea how the key specs of the Kobalt KHB 400B compare with similar leaf blowers.

  • Forced air leaving this blower’s nozzle has been clocked at 125 MPH. That makes the KHB 400B average in terms of air speed for battery-operated handheld blowers. If you wish to benefit from air expelled at the fastest possible speed, the Makita XBU01PT and its 208 MPH could be an option to consider.
  • If air volume is an important feature, the KHB 400B by Kobalt will not disappoint. Its airflow maxes out at 500 CFM (cubic feet per minute), which is more powerful than most cordless handheld blowers. If air volume is important to you, the Ryobi RY404100, with 730 CFM, could be in your good books.
  • Thanks to its autonomy of up to 70 mins, the KHB 400B benefits from a higher run time than many cordless handheld units. If autonomy is an important factor for you, the EGO POWER+ LBX6000 can run for up to 96 minutes and could be worth considering.

Price comparison

As you can see from this interactive chart, when compared to other cordless blowers, the Kobalt KHB 400B 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
  • Lightweight (5.7 lbs)
  • Brushless motor
  • 5 year (limited) warranty
  • High CFM (500 CFM)
  • Excellent autonomy (70 mins)
AVERAGE SPECS:
  • Decent MPH (125 MPH)
WEAKNESSES:
  • Battery not included

Do you own the Kobalt KHB 400B 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 KHB 400B 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

Where to find a replacement battery? (Asked June 8, 2020)

Kobalt's 80V battery can easily be bought online. See it on Amazon (opens in a new tab).

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