... , portable Effective capacity 5500mAh Portable External Power Supply for cell phone: iphone4s, iphone5, Nokia, blackberry,Samsung Product feature:1 ... Co.,Ltd. specializing in research , manufacture and distribution of high quality Li-ion battery, was founded in 2006. ISO certificated ... effective capacity 5500mAh Portable External Power Supply for cell phone: iphone4s, iphone5, Nokia, blackberry,Samsung