5000mAh power bank usb external battery chareger for mobile phone dual usb port can use at the same time back up charger 1) Backup Energy for iPhone4 2)Dural USB output 3)Capacity of internal battery: 5000mAh 4) For cellphone and iPhone5000mAh Backup Power Pack for cellphone and iPhone4 1) Material: ABS 2) Capacity of internal rechargeable polymer Lithium ion battery and circle life: 5000mAH and ...
