1. Product Overview
The DEWALT DCB205 is a 20V MAX 5.0 Amp-hour (Ah) Lithium-Ion battery designed for use with DEWALT 20V MAX power tools. It features a 3-LED fuel gauge system to provide immediate feedback on the state of charge, ensuring you know when to recharge. This battery is engineered for productivity with no memory effect and virtually no self-discharge, contributing to less downtime. Weighing approximately 1.4 lbs, it offers extended capacity for longer run times while remaining lightweight and portable.

Figure 1: Front view of the DEWALT DCB205 20V 5.0 Ah Lithium-Ion Battery.
2. Setup and Installation
Before first use, ensure the battery is fully charged. Refer to your DEWALT charger's instruction manual for specific charging procedures.
2.1 Attaching the Battery
- Align the battery with the battery port on your DEWALT 20V MAX power tool.
- Slide the battery into the tool until it clicks securely into place. Ensure it is firmly seated to prevent accidental detachment during operation.
2.2 Removing the Battery
- Locate the battery release button(s) on the power tool.
- Press and hold the release button(s) while sliding the battery out of the tool.
3. Operating the Battery
3.1 Checking Battery Charge Level
The DCB205 battery features a 3-LED fuel gauge. To check the charge level, press the button on the battery pack. The number of illuminated LEDs indicates the remaining charge:
- 3 LEDs: Fully charged or near full charge.
- 2 LEDs: Partially charged.
- 1 LED: Low charge, recharge soon.
- No LEDs: Battery is discharged.

Figure 2: The 3-LED fuel gauge on the DEWALT DCB205 battery indicates the charge level.
3.2 Charging the Battery
Always use a compatible DEWALT 20V MAX charger. Insert the battery into the charger according to the charger's instructions. The charger will indicate when the battery is fully charged. Do not attempt to charge the battery with non-DEWALT chargers.
4. Maintenance and Storage
4.1 General Maintenance
- Keep the battery clean and free of debris. Use a clean, dry cloth to wipe the battery terminals.
- Do not immerse the battery in water or any other liquid.
- Avoid dropping the battery or subjecting it to severe impacts.
4.2 Storage
- Store the battery in a cool, dry place, away from direct sunlight and excessive heat.
- For long-term storage, it is recommended to store the battery at a partial charge (e.g., 50-75%).
- Do not store the battery in a discharged state for extended periods, as this can lead to irreversible damage.
4.3 Disposal
Lithium-Ion batteries should not be disposed of with household waste. Always follow local regulations for proper disposal or recycling of batteries. Many retailers offer recycling programs for power tool batteries.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging |
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| Tool not operating with charged battery |
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6. Specifications
| Feature | Detail |
|---|---|
| Brand | DEWALT |
| Model Number | DCB205 |
| Product Dimensions | 5.83 x 5.55 x 2.72 inches |
| Item Weight | 1.43 pounds |
| Battery Cell Composition | Lithium Ion |
| Battery Capacity | 5 Amp Hours (5.0 Ah) |
| Voltage | 20V MAX |
| Recommended Uses | Power Tool |
7. Warranty and Support
7.1 Warranty Information
DEWALT provides a limited warranty for its products. For detailed warranty terms and conditions, please refer to the official DEWALT website or the warranty card included with your product. Keep your proof of purchase for warranty claims.
7.2 Customer Support
For technical assistance, service, or replacement parts, please contact DEWALT customer support. You can find contact information on the official DEWALT website or in the documentation provided with your product.
- Online Support: Visit the official DEWALT website.
- Service Centers: Locate authorized service centers via the DEWALT website.





