3.2V PCB BMS Protection Board 26650 18650 LiFePO4 Battery Cell.

3.2V LiFePO4 Single-Cell BMS Protection Board

This compact PCB Battery Management System (BMS) protection board is engineered to safeguard individual 3.2V LiFePO4 (Lithium Iron Phosphate) battery cells, including popular 18650, 26650, and 32650 cylindrical formats. By monitoring the cell voltage in real time, the board prevents the damaging effects of overcharging, over-discharging, and short circuits, dramatically extending battery cycle life and ensuring safe, reliable operation in your power projects.

Comprehensive Protection Functions

The onboard protection IC continuously supervises the connected cell, cutting off charge current when the cell reaches the overcharge threshold of approximately 3.65V and disconnecting the load when voltage falls to roughly 2.3V to 2.5V to prevent deep discharge damage. Integrated overcurrent and short-circuit protection instantly isolates the cell in fault conditions, protecting both the battery and your connected circuitry from potentially hazardous current spikes.

Easy Integration and Wiring

The board features clearly labeled solder pads for the battery positive (B+), battery negative (B-), and output terminals (P+ and P-), making installation straightforward for hobbyists and professionals alike. Simply solder the cell to the B terminals, confirm voltage appears at the output pads, and connect your load or charger. The compact PCB footprint allows the board to fit neatly inside battery holders, enclosures, or custom pack assemblies.

Ideal Applications

This protection board is perfect for DIY solar power banks, UPS backup systems, LED lighting projects, portable electronics, robotics power supplies, and any application using single 3.2V LiFePO4 cells. It is an essential safety component for makers building reliable lithium iron phosphate battery packs that require dependable charge and discharge management.