18V 21V Lithium Battery Case & Circuit Board Type-C DCB200

18V / 21V Lithium Battery Case & Circuit Board with Type-C — DCB200/DCB201 Compatible

Rebuild or upgrade your power tool battery packs with this precision-engineered 18V/21V Lithium Battery Case and Circuit Board. Compatible with the DCB200 and DCB201 form factor, this kit includes a robust BMS (Battery Management System) circuit board housed in a durable plastic and metal enclosure — making it an ideal solution for hobbyists and technicians experienced in battery assembly and repair.

Note: This product is intended for individuals with practical experience in battery assembly and a solid understanding of lithium cell performance. It is not a plug-and-play replacement battery — it is a component kit for building or restoring battery packs.

Key Features

• Dual Configuration: Supports both 5-cell and 10-cell lithium battery arrangements (18V or 21V output)
• Type-C Charging Port: Modern USB Type-C input for convenient, fast charging compatibility
• BMS Protection Circuit: Built-in high-temperature protection during charge and discharge cycles, plus low-temperature charging protection to safeguard your cells
• DCB200/DCB201 Compatible: Designed to fit the popular DCB200 and DCB201 battery pack footprint used in many 18V/20V power tool systems
• Durable Construction: Plastic + metal build for structural rigidity and long-term durability
• Two Size Options: 11 × 7.5 × 4.5 cm (5-cell) or 11 × 7.5 × 6.5 cm (10-cell) — choose based on your desired cell count
• Two Color Options: Available in 2 color variants to suit your preference

Specifications

Who Is This For?

This battery case and circuit board is designed for DIY electronics enthusiasts, battery repair technicians, and experienced hobbyists who want to restore or custom-build power tool battery packs. If you're comfortable handling lithium cells and understand basic battery assembly, this kit gives you everything you need to get your tools back up and running — or to build a custom 18V/21V pack from scratch.

For guidance on lithium battery safety best practices, refer to the U.S. Consumer Product Safety Commission (CPSC) Lithium Battery Safety page.

Frequently Asked Questions

Q: What does the 18V/21V Lithium Battery Case and Circuit Board kit include?

A: The kit includes a plastic and metal battery case shell and a BMS circuit board with USB Type-C charging input. It is designed to house 5 or 10 lithium cells (sold separately) in a DCB200/DCB201-compatible enclosure. It is a component assembly kit, not a complete ready-to-use battery.

Q: Is this compatible with DeWalt DCB200 and DCB201 tools?

A: This case and circuit board is designed to match the DCB200/DCB201 form factor and is intended for use in DIY battery rebuilds or replacements that fit tools accepting that battery footprint. Always verify compatibility with your specific tool before assembly.

Q: What protection features does the circuit board include?

A: The integrated BMS circuit board provides high-temperature protection during both charging and discharging, as well as low-temperature charging protection — helping to extend the life of your lithium cells and maintain safe operation during use.

Q: Do I need experience to assemble this battery pack?

A: Yes. This kit is recommended only for individuals who are familiar with lithium battery performance and have hands-on experience with battery assembly. Improper handling of lithium cells can be hazardous. Please follow all relevant safety guidelines when working with lithium batteries.

Q: What are the two size options?

A: The 5-cell version measures 11 × 7.5 × 4.5 cm, while the 10-cell version measures 11 × 7.5 × 6.5 cm. Choose the size that matches your cell count and voltage requirement (18V for 5-cell, 21V for 10-cell configurations).