The 110V~400V series lithium battery backup system is an industrial power backup product independently developed by Beijing Dazheng Hengye Electrical Engineering Co., Ltd. It adopts an advanced intelligent BMS management system and has alarm and protection functions such as overcharge, overdischarge, overcurrent, temperature, balance, and historical data storage functions. This product has outstanding advantages in the field of UPS and EPS backup power supply, especially in specific high rate discharge fields. Suitable for important scenarios such as rail transit, petroleum and petrochemical industries, data centers, etc., providing safe, reliable, economical, environmentally friendly, intelligent and convenient high reliability power solutions.