Xuzhou Hengyuan Electrical Appliances Co., Ltd. was founded in 1999 and is located in the National High-Tech Industrial Development Zone of Xuzhou, Jiangsu Province, China. It covers a land area of 23,000 square meters with a construction area of 32,000 square meters. The company is a professional manufacturer integrating the R&D, production and service of lithium battery application products. Its main product portfolio includes lithium battery chargers, inverters, DC-DC converters, battery management systems (BMS) and lithium battery packs. In recent years, the company has focused on the lithium battery energy storage sector, and has successively developed portable outdoor energy storage products as well as residential energy storage products.