The DeWalt DCB204 is DeWalt’s 20V MAX 4.0 Ah battery — a compact, lightweight option that balances runtime and tool weight. Fully compatible with all 250+ tools in the DeWalt 20V MAX platform, it is often sold in twin-pack kits and is a popular choice for lighter-duty cordless work.
DCB204 Specifications
| Specification | Value |
|---|---|
| Part Number | DCB204 |
| Voltage | 20V MAX (18V nominal) |
| Capacity | 4.0 Ah |
| Chemistry | Lithium-ion |
| Cells | 8 cells (5S2P configuration) |
| Weight | 510 g / 1.12 lbs |
| Platform | DeWalt 20V MAX |
| Charge Time (DCB115) | Approx. 60 min |
| Charge Time (DCB118) | Approx. 40 min |
Recommended Batteries
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Platform Compatibility
The DCB204 is compatible with every tool in the DeWalt 20V MAX system and is not compatible with DeWalt 54V/60V FLEXVOLT tools, which require a FLEXVOLT battery. (FLEXVOLT packs work the other way round and will run 18V/20V MAX tools.) It is not compatible with DeWalt 12V MAX tools or any Milwaukee/Makita tools.
Compatible 20V MAX Battery Models
| Battery Model | Capacity | Compatible |
|---|---|---|
| DCB201 | 1.3 Ah (ATOMIC) | ✅ Yes |
| DCB203 | 2.0 Ah (ATOMIC) | ✅ Yes |
| DCB204 | 4.0 Ah | ✅ Yes (this battery) |
| DCB205 | 5.0 Ah (XR) | ✅ Yes |
| DCB206 | 6.0 Ah (XR) | ✅ Yes |
| FLEXVOLT DCB606 | 6.0 Ah (60V/20V) | ✅ Yes (20V MAX mode) |
When to Choose the DCB204
The DCB204 is ideal when tool weight is a priority — drills used overhead, smaller impact drivers for extended periods, or compact ATOMIC tools. It charges faster than the DCB205/DCB206, making it useful when you need a quick top-up. For high-draw tools like circular saws or large angle grinders, the DCB205 or DCB206 will give noticeably better runtime.
Replacement Battery Options
Genuine DeWalt DCB204 replacements are widely available from authorised dealers. As a very common battery, compatible third-party 20V MAX 4.0 Ah options are also readily available. All genuine DeWalt 20V MAX batteries share the same connector and are fully interchangeable.
Specifications reflect standard production variants. Always verify compatibility with your specific tool model before purchase. For the most current product information, visit the manufacturer’s official website.
Where to Buy
Looking to pick up the DeWalt DCB204? Check current prices and availability:
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