... Efficiently 4.Five years cycle life 5.5000mAH ZC-M6 Universal Portable Power Bank,Power Bank 5000mah,Mobile Power Bank Main Features1 ... Period1 YearSize3.5*4.3*7.4cmZC-M6 User Manual Portable Power Bank is used to connect with the DC-5V ... indicator are blue, the unit is fully charged. ZC-M6 Universal Portable Power Bank,Power Bank 5000mah,Mobile Power Bank