TongKe provides flexible customization services for lithium batteries, including standardization, semi-customization and exclusive customization. From product specifications, performance parameters, appearance design to transportation requirements and after-sales service, we ensure that each lithium battery can accurately match the unique needs of our customers and achieve a perfect match. TongKe adopts advanced quality control system and strict quality management process, and through refined management and continuous improvement, we have successfully controlled the defective rate at 3‰, which is far below the industry standard. In addition, Tongke batteries have passed a series of international authoritative certificates and tests, such as CE, UL, RoHS, MSDS, PSE, KC, etc.