1Pcs 2S 5A 18650 Battery Protection Board BMS with Overcharge and Short Circuit Safety for 7.4V 8.4V Li‑Ion LiPo Pack

2024 1Pcs 2S 5A LiIon Lithium Battery Protection Board PCM for 7.4V 8.4V 18650 Cell Packs Overview This 2S protection board is designed for 18650 LiIon and LiPo battery cell packs. It provides essential packlevel protection and reliable performance for small to medium current battery applications. The board is supplied as a single piece and is rated for 5A continuous current. Key benefits Protects your battery pack: Builtin protection functions reduce the risk of overcharge, overdischarge, overcurrent, and short circuit conditions, helping extend pack life and prevent damage to cells. Match for 2S packs: Specifically made for 2cell series configurations with nominal voltage 7.4V and maximum charge voltage 8.4V. Easy integration: Compact PCB format fits typical 2S 18650 pack assemblies and is suitable for soldered or spotwelded connections. Reliable current handling: 5A continuous rating supports a wide range of portable electronics and hobby projects where moderate current is required. Onepiece supply: Sold as a single protection board for straightforward replacement or pack assembly. Specifications Configuration: 2S (two cells in series) Nominal voltage: 7.4V Maximum charge voltage: 8.4V Continuous current rating: 5A Cell type: Compatible with 18650 LiIon and compatible LiPo cells Package: Single protection board, PCB format Primary functions Overcharge protection to prevent cell voltages from exceeding safe limits Overdischarge protection to prevent excessive cell voltage drop Overcurrent protection to limit continuous and peak discharge currents Short circuit protection to interrupt current flow under fault conditions Designed for use in series 2S battery packs with 18650 cells Compatibility and installation Intended for DIY battery pack builders, technicians, and hobbyists working with 2S 18650 cell packs. Typical connection methods include soldering or spotwelding to pack positive, negative, and cell junction points. Compact form factor fits within shrinkwrap or enclosure spaces commonly used for 2S battery assemblies. Use scenarios Portable speaker or small audio system: Add this protection board when assembling a replacement 2S 18650 battery pack to protect the pack during charging and use. DIY robotics and electronics: Use for mobile robot power systems, controllers, or sensor modules that require a compact 7.4V battery pack with moderate current capability. Emergency lighting or camping gear: Integrate the board into a 2S 18650 pack for LED lanterns, portable lights, or small power banks that need reliable charge and discharge protection. What to expect A functional, singlepiece 2S protection circuit module that manages common fault conditions for 18650based packs and supports up to 5A continuous current. Suitable for users who need straightforward protection for builds or pack replacements without adding extra bulk. Note Confirm wiring polarity and cell arrangement before connecting. Follow standard battery handling and assembly practices when soldering or attaching cells to the protection board.