The AC bus battery charging and discharging system is an energy-saving and environmentally-friendly battery charging and discharging mode actively promoted by Huizhou Xinkehua Industrial Co., Ltd. since 2003. It is designed and promoted according to the national laws and regulations on the safe use of electricity for large and medium-sized enterprises. Article 443 of the “Safety Regulations for Coal Mines” imposes mandatory regulations on the safe supply and use of electricity in harsh production environments. It embodies the idea of people-oriented and safety first. It has been operating for many years in many large-scale battery plate enterprises in China, and its energy-saving effect is remarkable. Battery companies achieve energy saving and clean consumption, the preferred mode of clean production.