- 4S Li-ion BMS PCM built for battery protection, compatible with Lithium LicoO2, Limn2O4, and 18650 Li batteries. - Peak current 20A provides reliable protection for your pack during current surges. - Voltage compatible with 14.8V and 16.8V systems, ensuring integration with common 4S configurations. - Protects Li-ion batteries from overcharge, over-discharge, and short circuits to help prevent damage and extend life. - Essential component for guarding 4S Li-ion packs, helping maintain performance and longevity without adding complexity to your design. - Use scenarios: - In RC hobby packs (cars, boats, planes) to protect cells during charging and during operation. - In 14.8V/16.8V portable power packs or tool batteries to improve safety and durability. - In DIY 4S battery modules for compact electric devices or small e-mobility projects that rely on reliable protection.