With the increasing development of social living standards, battery packs have been fully presented in people's daily life. Battery packs are indispensable in cell phones, smart wearable, laptop computers, electric toys, floor sweeping robots, electric non-motorized vehicles, power tools, drones, robots, mobile power, portable energy storage, and new energy lamp terminals; Xinnuo technology can provide TVS, SKY, and medium-voltage and low-voltage power MOSFETs and other product solutions.