BMS PCBA 18V Li-Ion Battery Balance Charging Circuit Board

18V Li-Ion BMS PCBA – Balance Charging Circuit Board for BL1830 / BL1860 / BL1890 Battery Packs

Keep your 18V lithium-ion power tool batteries running at peak efficiency with this precision-engineered Battery Management System (BMS) PCBA. Designed as a direct-fit replacement circuit board for popular battery pack configurations including BL1830, BL1860, and BL1890, this compact board delivers intelligent balance charging and multi-layer protection to extend the life of your battery packs.

Made in Mainland China.

Key Features

• Multi-Layer Protection: Built-in safeguards against overcharge, over-discharge, short circuit, overload, and overheating — automatically cuts power under unsafe conditions to keep your battery cells healthy and your tools working.
• Balance Charging Technology: Actively balances cell voltages across the pack during charging, maximizing capacity and ensuring every cell charges evenly for consistent, long-lasting performance.
• Stable Long-Term Performance: Engineered for reliable, uninterrupted operation so your power tools never skip a beat due to electrical inconsistencies.
• Energy-Efficient Design: Smart power management reduces unnecessary energy draw, helping your battery last longer between charges and reducing overall environmental impact.
• Compact & Easy to Install: Slim, lightweight form factor fits neatly inside standard 18V battery cases without adding bulk or weight. Straightforward installation for DIYers and professionals alike.
• High Value: Professional-grade battery protection and management at an accessible price point — an economical upgrade for any power tool user.

Specifications

• Compatible Battery Packs: BL1830, BL1860, BL1890 (18V Li-Ion)
• Accessory Type: Battery Management System / Charger Accessory
• Material: Plastic (PCB housing)
• Package Includes: 1 × BMS PCBA Circuit Board
• Battery & Charger: Not included

Note: Color may vary slightly from images due to monitor settings and lighting. Please allow for minor measurement tolerances.

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Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: Which battery packs is this BMS PCBA compatible with?

A: This 18V Li-Ion BMS circuit board is designed to be compatible with BL1830, BL1860, and BL1890 battery pack configurations. Always verify your pack's internal dimensions and cell layout before installation.

Q: What protections does this battery management circuit board provide?

A: The BMS PCBA offers comprehensive protection including overcharge protection, over-discharge protection, short circuit protection, overload protection, and overheating protection. It automatically interrupts the circuit under any of these conditions to safeguard your battery cells.

Q: Is this board difficult to install in an 18V battery case?

A: No — the board is compact and lightweight, designed to fit neatly inside standard 18V Li-Ion battery cases. Most users with basic electronics or DIY experience can install it without specialized tools.

Q: Does this product include a battery or charger?

A: No. This listing is for the BMS PCBA circuit board only (1 piece). Batteries and chargers are not included.

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.