Welcome to Tong De Run TECHNOLOGY Co., ltd. located in Shenzhen, Guangdong Province of P. R. CHINA.We are a young and vibrant exporter company specialized in lithium-ion and lithium polymer batteries. TDR provides to its customers with all kinds of battery products from small capacity to large ones for various applications such as consumer electronics, power bank, energy storage, medical devices, industrial instrument, heated cloths and electric vehicles.In comparison with other makers of lithium batteries, the advantages of TDR&＃39;s battery and power packs are higher energy density, lower internal impedance, better temperature characteristics and more reliable performance.We work on customized products, offers best power solutions to client&＃39;s projects. Our mission is to provide most suitable power solutions and 5-star service to our customer world wide for various applications from mobile phone to electric vehicles.