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DEWALT 40V MAX* Lithium Battery, 6-Ah (DCB406)

4.2 4.2 out of 5 stars 106 ratings
Currently unavailable.
We don't know when or if this item will be back in stock.
Number of Batteries 1 Lithium Ion batteries required. (included)
Brand DEWALT
Battery Cell Composition Lithium Ion
Recommended Uses For Product Power Tool
Unit Count 1 Count

About this item

  • 6AH features a 4-LED fuel gauge that allows you to see the state of charge
  • Premium XR Li-ion battery that provides up to 50-Percent more capacity than the 4.0 Ah battery (DCB404)
  • No memory and virtually no self-discharge for maximum productivity
  • Compatible with all DEWALT 40V MAX tools and outdoor power equipment

Customer ratings by feature

Battery life
4.1 4.1
Value for money
3.6 3.6
Longevity
3.4 3.4
See all reviews
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DEWALT

DEWALT 40V MAX* Lithium Battery, 6-Ah (DCB406)

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Product Description

The DEWALT DCB406 40V Battery Pack, 6AH features a 4-LED fuel gauge that allows for immediate feedback on state of charge. This is a premium XR Li-ion battery that provides up to 50-Percent more capacity than the 4.0 Ah battery (DCB404). This battery has no memory and virtually no self-discharge for maximum productivity and less downtime when operating all of your outdoor and DIY tools. Compatible with all DEWALT 40V MAX tools and outdoor power equipment.

Top Brand: DEWALT

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DEWALT 40V MAX* Lithium Battery, 6-Ah (DCB406)
DEWALT 40V MAX* Lithium Battery, 6-Ah (DCB406)
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PriceCurrently unavailable.-50% $174.95
List: $349.00		-12% $198.99
Typical: $226.22		$69.99$345.99-22% $217.00
List: $279.00
Delivery—
Get it as soon as Wednesday, May 15
Get it May 15 - 16
Get it May 13 - 16
Get it May 10 - 14
—
Customer Ratings
4.24.2 out of 5 stars106
4.44.4 out of 5 stars232
4.74.7 out of 5 stars5
4.24.2 out of 5 stars34
4.64.6 out of 5 stars126
4.74.7 out of 5 stars8,696
Value for money
3.6
4.0
—
4.0
4.0
4.2
Longevity
3.4
4.5
—
3.6
4.6
4.2
Battery life
4.1
4.6
—
3.6
—
4.3
Sold By
—
Prime Gear Finds
THISS
EPOWERTECH
Deal Express (SN Recorded)
Fleet Tool
capacity
—
5 amp hours
6000 milliampere hour
6 amp hours
15 amp hours
6 amp hours
battery quantity
1 lithium ion
2 lithium ion
—
—
1 lithium ion
2 lithium ion
voltage
—
20 volts
56 volts
20 volts
20 volts
20 volts
reusability
Rechargeable
Rechargeable
Rechargeable
Rechargeable
Rechargeable
Rechargeable
compatible devices
Solar
—
Solar
Solar
Solar
Remotes

Customer reviews

4.2 out of 5 stars
4.2 out of 5
106 global ratings

Customers say

Customers like the performance of the battery. For example, they mention it works well and holds its charge. That said, opinions are mixed on the quality.

AI-generated from the text of customer reviews

5 customers mention5 positive0 negative

Customers are satisfied with the performance of the battery. They mention that it works well, holds its charge, and is helpful in their string cutter.

"OMG this battery is expensive! But, it works really well and holds its charge." Read more

"expensive but, works great in my string cutter" Read more

"Works fine. I can get 40 to 45 minutes of cutting time. Only slightly heavier than the 4AH pack." Read more

"They work well. Large" Read more

14 customers mention9 positive5 negative

Customers have mixed opinions about the quality of the battery. Some find it great, heavy duty, and long-lasting, while others say that it doesn't last long enough for them to finish their work and that it does not stay charged for more than 30 minutes.

"great battery, needed a third battery for my blower and weed eater, with {3]..." Read more

"Great product!" Read more

"OMG this battery is expensive! But, it works really well and holds its charge." Read more

"longer battery life, very helpful" Read more

Top reviews from the United States

Scott A
5.0 out of 5 stars OMG this battery is expensive!
Reviewed in the United States on August 19, 2022
Verified Purchase
OMG this battery is expensive! But, it works really well and holds its charge.
Helpful
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Shannyv
5.0 out of 5 stars These batteries are amazing.
Reviewed in the United States on July 28, 2015
Verified Purchase
I purchased 1 of these with a new 40v Trimmer, Blower, and Hedger. I love these so much. One battery with a full charge tends to last around 1 hour with the Trimmer. If it is lasting for less it is because of your use or you are on the Hi setting on the trimmer. I love how easy it is to see the level of charge by using the indicator on the rear. If you are a power user I recommend at least 3 batteries per tool so that you have plenty of batteries to last for your entire project as it takes about 1.5 hours to fully charge.
10 people found this helpful
Helpful
 Report
edward
5.0 out of 5 stars Last of the breed, so had to get one
Reviewed in the United States on October 9, 2023
Verified Purchase
Wish they were cheaper, I need them in that Dewalt seems to have stopped making them and we have a good number of tools and need them.
Helpful
 Report
Crystal
1.0 out of 5 stars This does not stay charged for more than 30 mins.
Reviewed in the United States on January 16, 2023
Verified Purchase
Does not stay charged for more than 30 mins.
3 people found this helpful
Helpful
 Report
bones
4.0 out of 5 stars Found one!
Reviewed in the United States on September 5, 2022
Verified Purchase
Hard to find item once Dewalt abandoned 40v
3 people found this helpful
Helpful
 Report
josephS
5.0 out of 5 stars Finally a long lasting 40V battery for my Dewalt
Reviewed in the United States on December 5, 2020
Verified Purchase
I like having the extra time for my Dewalt blower and hedge trimmer. The equipment is great but the 4Ah batteries don't last long enough for me to finish my work. Finally the 6Ah battery is enough!
One person found this helpful
Helpful
 Report
GEB
5.0 out of 5 stars great battery
Reviewed in the United States on June 18, 2019
Verified Purchase
expensive but, works great in my string cutter
Helpful
 Report
Hicova
5.0 out of 5 stars GREAT SERVICE!!!!
Reviewed in the United States on June 16, 2017
Verified Purchase
I ordered this spare battery for my DeWalt String Trimmer on Saturday, received it on Monday, and returned it on Tuesday after finding that it was defective (it would not charge). I received a replacement on Thursday which charged up fine. This is one of the reasons that Amazon is my first option when I am in the market for.... well..... just about anything.
6 people found this helpful
Helpful
 Report

Top reviews from other countries

Amazon Customer
5.0 out of 5 stars I would suggest this size of battery for the DCST990B trimmer.
Reviewed in Canada on August 15, 2018
Verified Purchase
I find that the battery charges quick and lasts a long time. Still new to using it.
Report
Pihi
5.0 out of 5 stars Batterie puissante
Reviewed in Canada on July 19, 2017
Verified Purchase
Batterie fiable et très puissante
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Paul Morin
5.0 out of 5 stars Five Stars
Reviewed in Canada on October 1, 2017
Verified Purchase
Worked like a dream.
Report
Toby
4.0 out of 5 stars Similar physical dimensions as the 4. 0 Amp hour ...
Reviewed in Canada on April 24, 2016
Verified Purchase
Similar physical dimensions as the 4.0 Amp hour battery though noticeably heavier, but lasts longer and still manageable in use.
2 people found this helpful
 Report
Mann Mechanical Ltd
5.0 out of 5 stars Five Stars
Reviewed in Canada on November 13, 2017
Verified Purchase
works great
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