# DeWalt 20V MAX XR 4.0Ah Battery

> DeWalt 20V MAX XR 4.0Ah Battery (DCB2104) is a battery from DeWalt 20V MAX. It is labelled 20 V, holds 4 Ah, and weighs 1.4 lb. Lowest in-stock price on file: $169.00 at Ohio Power Tool (checked Oct 29, 2026).

- Line: [DeWalt 20V MAX](https://powertoolgrid.com/lines/dewalt-20v-max/)
- Category: [Batteries](https://powertoolgrid.com/compare/battery/)
- Status: current
- Data confidence: confirmed (last verified 2026-10-29; [what this means](https://powertoolgrid.com/how-we-compare/#confidence))
- Page: https://powertoolgrid.com/products/dewalt-20v-max-dcb2104/

## Specifications

| Spec | Value | Source |
|---|---|---|
| Model number | DCB2104 | [dewalt.com](https://www.dewalt.com/en-us/product/dcb2104/20v-max-xr-4ah-battery) (brand, page, 2026-10-29) |
| Voltage on the label | 20 V | [dewalt.com](https://www.dewalt.com/en-us/product/dcb2104/20v-max-xr-4ah-battery) (brand, page, 2026-10-29) |
| Capacity | 4 Ah | [dewalt.com](https://www.dewalt.com/en-us/product/dcb2104/20v-max-xr-4ah-battery) (brand, page, 2026-10-29) |
| Energy | not published |  |
| Weight | 1.4 lb | [dewalt.com](https://www.dewalt.com/en-us/product/dcb2104/20v-max-xr-4ah-battery) (brand, page, 2026-10-29) |
| Warranty | not published |  |

## Where to buy

| Store | Price (USD) | Availability | Checked | Link |
|---|---|---|---|---|
| Ohio Power Tool | $169.00 | in stock | 2026-10-29 | [View at Ohio Power Tool](https://www.ohiopowertool.com/dewalt-dcb2104) |
| Tool Nut | $169.00 | in stock | 2026-10-11 | [View at Tool Nut](https://www.toolnut.com/products/dewalt-dcb2104-20v-max-xr-powerpack-4-0ah-battery) |

Prices are re-checked weekly; a date more than a month old means the store could not be re-read.

## Batteries from other platforms

- [DeWalt 60V MAX FLEXVOLT](https://powertoolgrid.com/lines/dewalt-60v-max-flexvolt/) (one way; see the platform page) — [source](https://homedepot.com/b/DEWALT/N-5yc1vZ4j2)


## The same tool on other platforms

Same category, different line:

- [BLACK+DECKER 40V MAX 2.0Ah Battery](https://powertoolgrid.com/products/black-decker-40v-max-lbx2040/) — $89.00
- [BLACK+DECKER 40V MAX 2.5Ah Battery](https://powertoolgrid.com/products/black-decker-40v-max-lbx2540/) — $99.00
- [BLACK+DECKER 40V MAX 1.5Ah Battery](https://powertoolgrid.com/products/black-decker-40v-max-lbx1540/) — $79.00
- [Craftsman V60 2.5Ah Battery](https://powertoolgrid.com/products/craftsman-v60-cmcb6025/)
- [Craftsman V60 5.0Ah Battery](https://powertoolgrid.com/products/craftsman-v60-cmcb6050/)
- [Craftsman V60 7.5Ah Battery](https://powertoolgrid.com/products/craftsman-v60-cmcb6075/)
- [Craftsman V20 4.0Ah Battery](https://powertoolgrid.com/products/craftsman-v20-cmcb204/)
- [Craftsman V20 2.0Ah Battery](https://powertoolgrid.com/products/craftsman-v20-cmcb202/)


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PowerToolGrid lists battery yard tools from every brand side by side, with a source for every spec. [How we compare](https://powertoolgrid.com/how-we-compare/). Data as of 2026-10-29.