Name: DEWALT 20V MAX* Batteries, Compact, 4.0-Ah, 2-Pack (DCB240-2)
Brand: DEWALT
SKU: 3AOYFJKE8F1K
Price: 179.99 CAD
Availability: OutOfStock
Rating: 3.7 (32 reviews)

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DEWALT 20V MAX* Batteries, Compact, 4.0-Ah, 2-Pack (DCB240-2)

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The DCB240-2 20V MAX 4Ah compact lithium Ion battery 2-pack provides the highest capacity within the DEWALT 20V MAX compact battery lineup. Using state-of-the-art lithium ion technology, the DCB240 delivers up to one-third more run time while maintaining the same size and weight as the DCB230 20V MAX 3Ah compact battery. Its small size and light weight provide ergonomic benefits for increased tool maneuverability and control for overhead applications. The DCB240 includes fuel gauge LED charge indicator and 3-year limited .

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Charging

Battery

Price

May lose capacity over time, affecting performance.

May not hold a charge or have poor performance.

[This review was collected as part of a promotion.] I was concerned they were counterfeit given the relative low price.  I used one on my hand drilll with a wire brush for about 2 hours. Not constant, but more on than off and it was still going.  It didn't slide in as nicely as the battery I have but it goes in and does the job.

Works well

walmart.com

[This review was collected as part of a promotion.] great product, will definitely order more

[This review was collected as part of a promotion.] Great price on Dewalt batteries. Charged right up and work perfect!

[This review was collected as part of a promotion.] Reliable. Did the job

[This review was collected as part of a promotion.] It's. Great product at a great price

Recommend

[This review was collected as part of a promotion.] They do the job and are DeWalt reliable. Good deal. Nothing to dislike. Stock up on them.

reliable in a world of knock-offs

I gave all my Ridgid tool sets to my Son about three years ago. He hasn't had a problem with them at all. The batteries last forever. I also kind of miss them.
I bought two new Dewalt sets when building the new house. Then bought some extra tools that didn't come with the kits, like the blower, weedeater, hedger, large impact driver, scrolling saw and a few others. I like my Dewalt tools. We purchased a lot of them for two of our homes. But I agree with some of these complaints about the batteries. We have a few batteries that didn't last a year and won't hold a charge. Discarded them at our local recycling center. 
Check this out. All Registered Ridgid tools have lifetime Warranty, also on the batteries. I sent back a ridgid battery with free replacement.
I even broke a Ridgid drill, sent it to Ridgid. They replaced it. No questions. 
Dewalt!  You need to step up to the plate, with free battery replacements. As the Dewalt tools break,  I will throw them away. When the batteries stop working, I will donate the Dewalt tools I have left over to someone that still uses Dewalt tools. 
I believe I will be moving back to Ridgid tools in the next few years.

Former Ridgid tool guy!

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[This review was collected as part of a promotion.] This was a recent purchase, so the items have had little use. Each battery required 1-2 hours of charging %26 the fit on both of them was difficult to install/deinstall in the charging unit and my DeWalt cordless drill.

Hoping for the best

I have 4 of these batteries that are right around 2 years old and 3 out of the 4 won't charge or hold a charge for anytime at all. I have plenty of older and newer batteries but only having issues with these 4ah ones

Won't charge

[This review was collected as part of a promotion.] I have several DeWalt Li batteries but I have TWO 4Ah batteries that are bad.  They never charge up, only 2 lighted bars.  Thus, they die quickly.  The larger Li batteries all work well, but the smaller ones are of poor quality.

4Ah batteries won't charge up