Mini 2600mah External Battery Pack Compact "Lipstick" Size USB Universal Portable Power Bank Charger for Iphone 5 4s 4 3gs, Ipod, Samsung Galaxy S4 S3 Minii8190, S3 I9300, S Ii I9100, S I9000, Galaxy Nexus, Galaxy Note 2,blackberry,nokia and Sony Psp,cemera (Silver)
Note:Please cheack if USB  and the cable contact correctly when charge.If charge is not efficient,it may because the built-in IC start the Short Circuit Protection system when contact is not right.It can be used properly when you use again.