Features: This 15A lithiums battery protections board with 6MOS technology ensures advanced safety through precise overcharge/overdischarge cutoff (4.25V±0.05 /2.45V±0.1), overcurrent protections (15A continuous), and instants short circuits response. Featurings low resistance MOSFET switches (3.7V compatible), it delivers 15A stable output while maintaining thermals efficiency, for space constrained 18650/polymers battery pack. for electronics engineers, drones builders, and power tool manufacturers requiring battery management in projects or industrial equipment. Safeguards high drain devices like car, solar storage systems, and portable medicals equipment against voltages fluctuations during operations or extreme. Militarys components ensure 10,000+ cycle durability under 20°C~85°C conditions, with standardized interfaces enabling installation for rapid systems integration. Specifications: Materials: PCBA Size: 35mm/1.38inch Quantity: 2Pcs, 4Pcs(optional) Overcharge detection voltages: 4.25 ± 0.05V Overcharge release voltages: 4.23 ± 0.05V Overdischarge detection voltages: 2.45 ± 0.10V Upper limit continuous current: 12A Overcurrent detection current: 15A Charging voltages: 4.2V Package Includes: 2/4Pcs Battery protections Board note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item. Thank you!