ChangZhou YuFeng Electrical Co., Ltd was founded in 2001, and is a high-tech enterprise specialized in the R&D, production and sales of 3V primary lithium cells. Our company is located in Changzhou Photovoltaic Industrial Park ,covering an area of 26000㎡, with over 300 staff. Now we produce more than 20 models of lithium coin cells, with annual output more than 400million pcs. In the recent years, we keep developing steadily, no matter the battery quality or the production scale, we are in the leading position among our competitors in China. Now we have more than 20 patents, and our company passed ISO9001 and ISO14001 management system, our batteries are honored with RoHS, UL and UN38.3 certifications..