18V Li Ion Battery Protection Circuit Board For Power Tool Batteries Overvoltage Overcurrent Undervoltage Overheat Safe Copper PCB Replacement Plug And Play For Quick Fit And Long Life

1x 18V Li-ion Battery Protection PCB for Power Tool Packs
✔️ Compact 4.6x3.3 cm PCB, default 18V; 14.4V option via solder

This 18V Li-ion battery protection circuit board is a plug-and-play replacement designed to fit common 18V packs for power tools. It guards against overheat, overvoltage, undervoltage, overcurrent, and overcharge, extending battery life and safety in drills, saws, and similar tools.

✅ Voltage: 18V by default; 14.4V option with soldered contact
✅ Compatible with 18V tool packs: BL1830, BL1840, BL1850
✅ Protects against overheat, overvoltage, undervoltage, overcurrent, overcharge
✅ Easy to install: compact 4.6x3.3 cm PCB for quick replacement
✅ Material: Copper clad laminate for durability
✅ Package contents: 1 x Circuit Board

💡 What is an 18V Li-ion battery protection circuit board used for in power tool batteries?

It guards against common faults and helps extend life by smartly managing voltage and current in 18V packs.

- handy replacement for worn protection boards in 18V tool batteries
- protects against overcharge, deep discharge, overheating, and faults
- simple plug-and-play install to reduce downtime on drills and saws
- works with common 18V tool battery packs such as BL1830, BL1840, BL1850