High-voltage aging machine is specially used to detect high-power battery modules. The system adopts advanced three-phase high-frequency rectifier inverter technology and IGBT switch technology combined with more than 10+ years of business technology in the protection board industry to comprehensively design a system with high stability, high adaptability, high safety, energy saving and flexibility. It is mainly used for power battery pack capacity, power battery pack laboratory, cycle life test and working condition test, etc., which can significantly improve PACK manufacturers' production efficiency and product quality.