OTOTEC 3S 12V Li Ion Battery BMS Protection Board 2 MOSFET Compatible with 18650 Cells

- 3S 12V Protection: Designed for 3-series Li-ion packs; Compatible with 18650 cells and DIY 3S battery packs for small projects, lighting, toys, power banks, and low-power electronics. - Multi-Safety Guard: Automatic cutoff for overcharge, overdischarge, short circuit, and overcurrent using dual MOSFET switching to help protect the pack during charge and discharge. - Simple Wiring: Compact PCB with clearly labeled B+, B-, P+, P-, B1, B2 pads for straightforward integration in tight enclosures or prototypes. - 12V Pack Builder Use: Aids building or repairing 3S packs for LED strips, backup power, RC projects, and portable speakers; helps mitigate deep discharge during storage or intermittent use. - Use Notes: For Li-ion chemistry only and moderate current draw applications; not suitable for high-drain tools or e-bike systems.