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expiredPEMP posted Dec 24, 2024 03:35 PM

DeWALT DCB2108 20V MAX XR POWERPACK 8.0Ah Battery

+ Free Shipping

$97

$219

55% off
Amazon
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Deal Details
Toolup via Amazon has DeWALT DCB2108 20V MAX XR POWERPACK 8.0Ah Battery on sale for $96.97. Shipping is free.

Thanks to community member PEMP for finding this deal.

Product Details:
  • Longer lifespan - help maximize longevity day in and day out with this battery that delivers longer life than traditional cylindrical batteries
  • Resists wear-and-tear
  • State-of-charge: get quick visibility to your battery's state-of-charge with the LED indicator to help avoid interruptions
  • These XR batteries are compatible with 20V max tools and chargers

Editor's Notes

Written by powerfuldoppler | Staff

Original Post

Written by PEMP
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Toolup via Amazon has DeWALT DCB2108 20V MAX XR POWERPACK 8.0Ah Battery on sale for $96.97. Shipping is free.

Thanks to community member PEMP for finding this deal.

Product Details:
  • Longer lifespan - help maximize longevity day in and day out with this battery that delivers longer life than traditional cylindrical batteries
  • Resists wear-and-tear
  • State-of-charge: get quick visibility to your battery's state-of-charge with the LED indicator to help avoid interruptions
  • These XR batteries are compatible with 20V max tools and chargers

Editor's Notes

Written by powerfuldoppler | Staff

Original Post

Written by PEMP

Community Voting

Deal Score
+31
Good Deal
Visit Amazon

Price Intelligence

Model: DEWALT DCB2108 20V MAX XR POWERPACK 8.0Ah Battery

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Sort: Lowest to Highest | Last Updated 5/20/2026, 11:18 PM
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Amazon$169
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Top Comments

IncompletePerfect
2383 Posts
1427 Reputation
I've had 2 nightmare orders from Toolup through Amazon.

Most recently was a Bosch 12ah battery that arrived used, and it had non-factory screws in it. It took me just over 2 months to get corrected.

Prior to that was 2 Dewalt 5ah batteries that turned out to be fake. They claimed it was due to the fact that there was a mixup, and I returned the batteries, but they were a nightmare to deal with.

I've spoken with others that have said Toolup (here in Florida) is a resell store that buys pallets of returns. This is why items do not come in manufacturers packages. I can't testify to the truth of that, but from now on, I make sure an item on sale on Amazon is not from Toolup.
EdMcK515
2298 Posts
479 Reputation
The problem is Amazon co-mingles inventory.

It's why I stopped order auto parts off them.
PEMP
1211 Posts
1585 Reputation
Toolup are an authorized dealer for both Bosch and DeWalt. For experiences like yours, where you received used or fake goods when sold as new, I would implore you to contact the manufacturer and report it. I know it is a bit of extra work on your part, but it should be beneficial to the community in the long run.

49 Comments

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Dec 24, 2024 09:02 PM
1,213 Posts
Joined Feb 2014
Obese_ICEagentDec 24, 2024 09:02 PM
1,213 Posts
Very tempting. I think for $100 I'd be willing to risk a fake.
Dec 24, 2024 09:50 PM
385 Posts
Joined Dec 2012
nyantaDec 24, 2024 09:50 PM
385 Posts
In for 1, only have a 2 and 4 Ah battery. Hope its not a fake but I guess we'll see in January
Dec 24, 2024 10:47 PM
405 Posts
Joined Nov 2009
koshawalaDec 24, 2024 10:47 PM
405 Posts
These are not powerstack batteries as the OP says. These are 'powerpack' batteries. I don't know the difference.
Original Poster
Pro
Dec 24, 2024 10:58 PM
1,211 Posts
Joined Mar 2022
PEMP
Original Poster
Pro
Dec 24, 2024 10:58 PM
1,211 Posts
Quote from koshawala :
These are not powerstack batteries as the OP says. These are 'powerpack' batteries. I don't know the difference.
For some reason, the title got changed from "POWERPACK" to "POWERSTACK" when it went to Frontpage.

POWERSTACK use lithium-ion pouches. POWERPACK use more conventional 21700 cylindrical cells that are tabless. The tabless design allows higher current flow. This battery has higher current output than any of the others in the line up, surpassing the 5Ah POWERSTACK and the 9Ah FLEXVOLT*.

*On paper, the 9Ah FLEXVOLT has a higher peak current, 105A vs 90A, but in testing the POWERPACK has been coming out on top by a whisker (e.g., Torque Test Channel testing [youtube.com]).
Last edited by PEMP December 24, 2024 at 03:20 PM.
Pro
Dec 24, 2024 11:11 PM
3,176 Posts
Joined Mar 2007
hkteaman
Pro
Dec 24, 2024 11:11 PM
3,176 Posts
Quote from koshawala :
These are not powerstack batteries as the OP says. These are 'powerpack' batteries. I don't know the difference.
I don't know the difference as well but you are correct, it's clearly labeled as powerpack on Amazon's site as well on the item picture. I searched and 8ah didn't come up on powerstack and only on powerpack. I bought it mainly for the light weight (powerstack). I ordered but we can always return it.

Here's a discussion a couple of months ago on Reddit.
https://www.reddit.com/r/Dewalt/c...?rdt=65490
1
Dec 25, 2024 12:02 AM
22 Posts
Joined Apr 2014
Pr00001Dec 25, 2024 12:02 AM
22 Posts
Does higher Ah give more power to the tool?
Pro
Dec 25, 2024 01:24 AM
3,176 Posts
Joined Mar 2007
hkteaman
Pro
Dec 25, 2024 01:24 AM
3,176 Posts
Quote from Pr00001 :
Does higher Ah give more power to the tool?
I don't think so because Ridgid and Milwaukee came out with 3 ah batteries that provide more power and it's because of the cells they used. Here's the question that was asked 3 years ago

https://www.reddit.com/r/Tools/co...?rdt=40793

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Dec 25, 2024 01:29 AM
466 Posts
Joined Jan 2008
ChipipayDec 25, 2024 01:29 AM
466 Posts
Could this be a price mistake?
The powerpacks are newer and more expensive than powerstacks. I hope they ship the PowerPacks and not the PowerStack
Original Poster
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Dec 25, 2024 02:54 AM
1,211 Posts
Joined Mar 2022
PEMP
Original Poster
Pro
Dec 25, 2024 02:54 AM
1,211 Posts

Our community has rated this post as helpful. If you agree, why not thank PEMP

Quote from Pr00001 :
Does higher Ah give more power to the tool?
Technically, no. The Ah is purely a metric of the capacity independent of the power output. However, there is some correlation between capacity and power output since higher capacity batteries use more cells. If these cells are in parallel, they permit higher currents (which directly corresponds to power as current x voltage = power). In addition, higher capacity cells can sustain the voltage for longer (less sag) and so that also contributes to power.

As you go up in capacity, there are jumps in power output, and also battery-pack size, as additional layer of cells are added. The cells are typically 3.6V and so five of them are run in series to get to 18V (20V MAX has a nominal voltage of 18V). This configuration includes the compact batteries (DCB201, DCB203). To increase capacity further, packs can be made up of 10 cells, configured as two serial circuits of five cells in parallel. This configuration doubles the current output. Then there are some packs with 15 cells (three parallel circuits).

Older and non-premium batteries use 18650 cells (the number refers to the size: 18mm in diameter x 65mm in length). In the DeWalt line, these include packs with one row of five cells (DCB201, DCB203), two rows (DCB200, DCB204, DCB205), three rows (DCB606) or six rows (DCB615).

Some newer batteries use the larger 21700 cells. These generally have higher power output than 18650s. They are also 3.6V and so are configured as one or more circuits of five cells. DeWalt has 21700-cell batteries configures in one row (DCB230, DCB240), two rows (DCB206, DCB208, DCB210) and three rows (DCB609, DCB612).

The latest 21700 configurations are tabless allowing more power. Currently, DeWalt only offers one tabless 21700 battery and that is this one, the DCB2108 which is two rows of five cells. The next one to be release will be a 4Ah, the DCB2104, which will have one row of five cells.

Finally, some batteries use lithium-ion pouched rather than cells stacked up (hence the name POWERSTACK). They seem to be configured in units of ~1.7Ah, with the DCBP034 using one unit (1.7Ah), the DCBP520 using three (5Ah) and the yet-to-be-released DCBP320 using two units (3.5Ah). The pouches have higher output capacity than 18650 or 21700 (non-tabless) cells.
2
Original Poster
Pro
Dec 25, 2024 03:00 AM
1,211 Posts
Joined Mar 2022
PEMP
Original Poster
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Dec 25, 2024 03:00 AM
1,211 Posts

Our community has rated this post as helpful. If you agree, why not thank PEMP

Quote from Chipipay :
Could this be a price mistake?
The powerpacks are newer and more expensive than powerstacks. I hope they ship the PowerPacks and not the PowerStack
DeWalt seems to be heavily promoting these batteries and so I don't think it is a price mistake. They gave a bunch of them for free to their authorized dealers to sell as buy-one, get-one deals. I don't know for sure, but I think packs using tabless 21700 cells are cheaper to produce than lithium pouches. Therefore, I would expect to regularly see these 8Ah packs on sale for around the same or less than the 5Ah POWERSTACKs. Similarly, Milwaukee have been heavily discounting their M18 FORGE 8Ah and 12Ah batteries which both use tabless 21700s, but have not offered much off on the M18 FORGE 6Ah which uses pouches. You can generally pick up the 8Ah for less than the 6Ah.
1
Dec 25, 2024 09:12 AM
175 Posts
Joined Oct 2017
OpenheimerDec 25, 2024 09:12 AM
175 Posts
They keep increasing the size of these "portable" batteries. Very soon people will be wearing backpack batteries walking around looking like a Guatemalan Landscaper
2
Dec 25, 2024 01:56 PM
22 Posts
Joined Apr 2014
Pr00001Dec 25, 2024 01:56 PM
22 Posts
Quote from PEMP :
Technically, no. The Ah is purely a metric of the capacity independent of the power output. However, there is some correlation between capacity and power output since higher capacity batteries use more cells. If these cells are in parallel, they permit higher currents (which directly corresponds to power as current x voltage = power). In addition, higher capacity cells can sustain the voltage for longer (less sag) and so that also contributes to power.

As you go up in capacity, there are jumps in power output, and also battery-pack size, as additional layer of cells are added. The cells are typically 3.6V and so five of them are run in series to get to 18V (20V MAX has a nominal voltage of 18V). This configuration includes the compact batteries (DCB201, DCB203). To increase capacity further, packs can be made up of 10 cells, configured as two serial circuits of five cells in parallel. This configuration doubles the current output. Then there are some packs with 15 cells (three parallel circuits).

Older and non-premium batteries use 18650 cells (the number refers to the size: 18mm in diameter x 65mm in length). In the DeWalt line, these include packs with one row of five cells (DCB201, DCB203), two rows (DCB200, DCB204, DCB205), three rows (DCB606) or six rows (DCB615).

Some newer batteries use the larger 21700 cells. These generally have higher power output than 18650s. They are also 3.6V and so are configured as one or more circuits of five cells. DeWalt has 21700-cell batteries configures in one row (DCB230, DCB240), two rows (DCB206, DCB208, DCB210) and three rows (DCB609, DCB612).

The latest 21700 configurations are tabless allowing more power. Currently, DeWalt only offers one tabless 21700 battery and that is this one, the DCB2108 which is two rows of five cells. The next one to be release will be a 4Ah, the DCB2104, which will have one row of five cells.

Finally, some batteries use lithium-ion pouched rather than cells stacked up (hence the name POWERSTACK). They seem to be configured in units of ~1.7Ah, with the DCBP034 using one unit (1.7Ah), the DCBP520 using three (5Ah) and the yet-to-be-released DCBP320 using two units (3.5Ah). The pouches have higher output capacity than 18650 or 21700 (non-tabless) cells.
Wow.. thanks!
Dec 25, 2024 02:41 PM
1,467 Posts
Joined May 2010
MoneymitchDec 25, 2024 02:41 PM
1,467 Posts
Is this really a $200 battery at retail?
Dec 25, 2024 03:14 PM
33 Posts
Joined Jul 2016
mcclmarDec 25, 2024 03:14 PM
33 Posts
Quote from EdMcK515 :
The problem is Amazon co-mingles inventory.

It's why I stopped order auto parts off them.
I ordered a battery from the official DeWalt battery store and they shipped it from a third-party seller and it was definitely a counterfeit battery.

I did this twice and sent it back twice.

You might as well order a knockoff battery if you're ordering direct from Amazon.... Because that's what you're going to get.
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Dec 25, 2024 03:16 PM
33 Posts
Joined Jul 2016
mcclmarDec 25, 2024 03:16 PM
33 Posts
Quote from Chipipay :
Could this be a price mistake?
The powerpacks are newer and more expensive than powerstacks. I hope they ship the PowerPacks and not the PowerStack
They are counterfeit batteries, hence the price.
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