The Yishengda 1000V high-voltage aging test cabinet has been launched, with a power frequency solution, independent research and development, high efficiency and energy saving, comprehensive functions, and support for on-demand customization. It is mainly used for life aging testing and quality control of battery modules in production or experiments. The system is designed with modular design, single point independence of channels, support for multi-channel parallel connection, and high thermal stability of independent air ducts. When charging, the device uses PWM technology to charge the battery, improving system efficiency and reducing losses. When discharging, the device feeds the energy of the battery into the grid to achieve energy feedback and bring benefits to customers.