Pack automatic test system is a P series battery pack automatic detection system logistics line independently developed by our company. The output voltage of the charging and discharging detection equipment is 60V, 300A. It adopts dual-channel test. The systems are independent of each other, without interference. Simultaneously test two battery packs, the system has integrated functions of automatic loading and unloading, weighing, code scanning, temperature detection, charge and discharge test and air tightness test automation. Among them, the charging and discharging detection power supply part is the latest IGBT and SiC switching power supply technology, which can realize the reverse feedback of the discharge energy to the power grid to achieve the effect of energy saving and power saving