... :1 year portable charger/power bank for iPhone, ipad,travel mobile charger, USB mobile charger[Power bank/ mobile power ] features: Capacity 6000mAhCell Type: polymer ... bad contact in using for some times;6) applicable for IPAD, apple iPhone4/4 s, and most of the mobile phone, smart phones ... ’s requirementsDelivery time : 15days Best charger battery bank power bank for smartphone, USB mobile charger