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DEWALT 20V MAX* XR Battery, 4.0-Ah, 2-Pack (DCB204-2), Black

  • Based on 24,384 reviews
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Availability: Only 2 left in stock, order soon!
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Arrives Wednesday, Mar 11
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Style: 20V MAX XR


Features

  • Reliable runtime - take on tough jobs with these batteries that deliver 3ah capacity each for consistent runtime on the jobsite.
  • State-of-charge - get quick visibility to your batteries' state-of-charge with the LED indicator to help avoid interruptions.
  • Part of the 20V MAX* system - these batteries are compatible with 20V MAX* tools and chargers.

Description

Power your 20V MAX tools with these 20V MAX 3Ah batteries that feature the runtime and performance needed for tough jobs. These batteries are compatible with 20V MAX tools and chargers.

Number of Batteries: 1 Lithium Ion batteries required. (included)


Brand: DEWALT


Battery Cell Composition: Lithium Ion


Battery Capacity: 4 Amp Hours


Recommended Uses For Product: Power Tool


Product Dimensions: 4.5 x 3.13 x 2.63 inches


Item Weight: 2.9 pounds


Item model number: DCB204-2


Batteries: 1 Lithium Ion batteries required. (included)


Is Discontinued By Manufacturer: No


Date First Available: March 7, 2013


Manufacturer: DeWalt


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Mar 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Amazing Li-ion Batteries, Powerful & Lightweight!!!
Style: 20V MAX XR
Light weight and Powerful. So much better than the old NiCd batteries! These are the 4.0Ah batteries, and not to mention there strengths (associated with Li-ion batteries), they do last for a very, very long time, while under a constant heavy work load. When I compare the same work I did with a older DeWalt hammer drill and the 18v XRP NiCd battery, with the new DeWalt DCD995 20V hammer drill, and just 1 of these DCB204 - 4.0Ah "Premium" battery, it's a complete NO contest! The new Li-ion battery from DeWalt last so much longer, I'm talking a full work day, & more! I just love these Li-ion battery packs! As said in another review, you can get these packs in varying Ah capacities. 1.5Ah, 2.0Ah, 3.0Ah, 4.0Ah Before, I would need to change batteries usually twice a day, with the old 18v NiCd batteries and drill. Now I can work for more than a full day with a single battery. So to me, thats one hell of a battery! These light weight but powerful batteries also help with daily fatigue! I'm just so use to my old 18v hammer drill and battery weighing so much, and now this new combination of the DCD995 hammer drill, and the DCB204 - 4.0Ah battery weigh so little, it's really hard to believe you can do so much work with just one of these batteries. But you can!!! & they are amazing! I've been waiting a long time for DeWalt to come out with Li-ion powered tools. I've been doing rough and finish carpentry for over 35 years, along with custom cabinetry. This new line of 20V MAX tools they have are all very nice, and both heavy duty, and affordable Now that they've incorporated Li-ion batteries for power, they will be able to expand there tool line even more. Even though other companies started using them sooner, I'm glad DeWalt took there time! It shows in the tools quality build, and there tools performance! For those of you that are unfamiliar with the advantages of Li-ion chemistry over NiCd & NiMH, please use your favorite search engine, and read for yourselves. There is plenty of good information online for you! I do see 1 or 2 people complaining about Li-ion batteries not performing as good as the older NiCd batteries, and truthfully, those people have NO facts to back up there statements. Li-ion batteries are a Very slow self drain, to NO self drain battery, meaning they keep there charge for a very long time! They have superior storage capacity, and integrated circuitry, to control & regulate, high output voltage and current, over heating, and over charging. There is no more memory effect, like there is in NiCd batteries. They are very safe to use (today), with there built in IC's If these are on par with some of the best Li-ion batteries made today, they should be able to be recharged up to 500 times, and possibly more. I'm not sure what DeWalt says on this. Though all batteries suffer, when used in cold weather, (lower output & performance), Li-ion batteries still out perform other batteries, in both work load & work time. In other words, you couldn't ask for a better battery to use out in the cold! You can find many fact based web sites on this as well. One last thing, both these new line of 20V MAX tools, and these new line of 20 volt batteries get good reviews and ratings from 99% of buyers, so when you do read one of those unfounded reviews saying these are not good tools, please just do your own homework and fact find for yourself, in the end, you'll be glad you did! Professional Quality Tools & Batteries, I Highly Recommended!!! ... show more
Reviewed in the United States on April 24, 2014 by DB62

  • lasting power of the battery
Style: 20V MAX XR
Perfect fit long lasting good quality better than I expected very pleased price and quality great
Reviewed in the United States on February 2, 2026 by Tommy Parish

  • Greatful
Style: 20V MAX XR
Good value in timely fashion. 👏
Reviewed in the United States on February 22, 2026 by Thomas s.

  • Quality
Style: 20V MAX XR
Great product, better price
Reviewed in the United States on February 19, 2026 by Jeff Baumann

  • 20V replacement Batteries
Style: 20V MAX XR
I received my batteries within 3 days. They charged up and performed well drilling holes in hard water.
Reviewed in the United States on February 26, 2026 by Tom

  • The best of the best
Style: 20V MAX XR
DeWalt 20V battery pack varieties, capacities and runtimes: Learn from my mistake. Not all batteries are created equal. I needed the DeWalt 20V cordless circular saw and the tool-only option was so much cheaper than the tool with 1 battery and charger, that I was almost able to buy a 20V drill, charger and 2 batteries with the savings, so that's what I did. While shopping for the new 20V drill, I had vaguely noticed slight differences in the sizes and colors of the batteries that came with them and I also noticed large disparity in the prices of various 20V drills. I purchased the cheapest one (it was mostly for the batteries after all) and, in general, thought that both the saw and the drill performed with excellence; however, on jobs where I was using only the drill, I noticed I could go all day on 1 battery, but on days where I needed the saw, I noticed the second battery was dead long before the first one had a chance to re-charge. That is when I started to take notice of the different sizes and colors of the various DeWalt 20V battery packs out there. It wasn't easy to find hard numbers to compare one to another, but I did manage to find what I was looking for by cobbling together information from multiple websites. Here is what I found: Model Capacity Name Color Size DCB201 - 1.5Ah - 20V compact - black - thin DCB200 - 3.0Ah - 20V standard - black - thick DCB203 - 2.0Ah - 20V XR compact - yellow - thin DCB204 - 4.0Ah - 20V XR premium - yellow - thick As you can see from the table, the compact eXtreme Runtime battery gives you 33% more runtime than the compact, the standard 20V gives you 100% more runtime than the compact and the XR premium gives you 266% more runtime than the compact. Purchasing this 2 pack of XR premium nearly tripled my runtime from 3Ah total (2 x 1.5) to 11Ah total (2 x 1.5 + 2 x 4) for both tools. My crew is now capable of running both tools all day without re-charging, but I didn't need the drill and the batteries that came with it weren't getting the job done with the saw. I should have purchased this discounted 2-pack of XR Premium batteries instead of the drill and pocketed some savings. Price: All 4 battery varieties are available in 1 and 2-packs. Prices vary and sales happen, so things may change, but at the time of my purchase, the DCB204 2-pack was absolutely the best value for Ah/$ and enabled me to increase the most runtime for the fewest dollars by far and away over the smaller batteries or the XR premium 1-pack. Size and weight: The tools and the batteries have performed flawlessly thus far and just work all day without recharging. The only trade offs I have noticed with the DCB204 XR premium batteries is that they are much more suited for the saw than the drill. They are more than twice as heavy as the compact batteries and, for those of you who are familiar with the DeWalt line of 18V batteries, they are only slightly smaller and lighter than those and add considerable heft and imbalance to the drill. The extra weight is only felt when carrying the saw, but not while running it. As a result, we have developed a workaround of using the XR premium batteries on the saw and the compact ones on the drill and that enables both tools to run all day. Lesson learned, just because the batteries are interchangeable, doesn't mean they will accomplish what you set out to do with them. Get the big batteries for your big tools! ... show more
Reviewed in the United States on February 21, 2014 by JeffPescador

  • Good batteries
Style: 20V MAX XR
Never have enough batteries on hand , I get extras when I see them for a good deal -
Reviewed in the United States on February 5, 2026 by Daniel C.

  • Good Stuff!
Style: 20V MAX XR
Weird, Ordered 4 Ah, received 4 Ah. Anyway the 4Ah seems to be the best balance between weight and longevity. The 2Ah don't last long in anything but the drill. Grinder, blower, sander go through a 2Ah fast. The %Ah and 6Ah are pretty heavy holding onto for any length of time. That said. Love the 20V Dewalt tools and batteries Would recommend. ... show more
Reviewed in the United States on November 19, 2025 by JD

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