18V BL1830 Lithium Battery Protection Circuit Board PCB/LED

18V BL1830 Lithium Battery Protection Circuit Board (PCB / LED)

Keep your 18V power tool lithium battery packs running safely and efficiently with this compact, high-quality Battery Management System (BMS) Protection Circuit Board. Designed to be compatible with 18V BL1830-style lithium battery packs (3Ah, 6Ah, and 9Ah), this board provides essential multi-layer protection to extend battery life and safeguard your tools and workspace.

Available in two variants — a standard PCB Circuit Board or an LED Circuit Board — so you can choose the option that best suits your replacement or repair needs.

Made in Mainland China.

Key Features

• Multi-Protection Design: Guards against overheat, overvoltage, undervoltage, overcurrent, and overcharge for maximum battery safety.
• Compatible with 18V BL1830 Lithium Battery Packs (3Ah, 6Ah, 9Ah capacity variants)
• Durable Construction: Copper clad laminate board built to last through repeated charge cycles — reliable until the battery cells themselves reach end of life.
• Compact Size: Approximately 4.6 × 3.3 cm — fits neatly inside standard battery housings.
• Easy to Install: Straightforward drop-in replacement for DIY battery repair and rebuilding projects.
• Two Options: Choose between a standard PCB board or an LED-equipped board based on your preference.
• Color: Random (may vary per unit)
• Voltage: 18V

Specifications

Package Contents

• 1 × Circuit Board (PCB or LED, as selected)

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Note: PCB design may change due to supply chain updates and processing technology improvements. The actual color may differ slightly from product images due to monitor brightness and lighting conditions. Please allow for minor measurement deviations of ±1–3 mm.

Learn more: ENERGY STAR product efficiency guidance

Frequently Asked Questions

Q: Which battery packs is this 18V protection circuit board compatible with?

A: This circuit board is designed for use with 18V BL1830-style lithium battery packs, including 3Ah, 6Ah, and 9Ah capacity variants commonly used in power tools. Always verify your battery pack's voltage and connector layout before installing.

Q: What is the difference between the PCB Circuit Board and the LED Circuit Board options?

A: The standard PCB Circuit Board handles battery management and protection functions. The LED Circuit Board includes an additional LED indicator component, which can be used to show battery status or charge level depending on your battery housing design. Choose based on your specific repair or rebuild requirements.

Q: What protections does this battery circuit board provide?

A: This protection board safeguards your lithium battery against five key issues: overheat, overvoltage, undervoltage, overcurrent, and overcharge. These protections help extend the usable life of your battery cells and keep your power tools operating safely.

Q: How difficult is it to install this circuit board?

A: Installation is straightforward and suitable for home DIY repairs. The board is compact (approx. 4.6 × 3.3 cm) and designed to fit within standard battery housings. Basic soldering skills and familiarity with battery pack disassembly are recommended for best results.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.