IVIC 16001mAh High Capacity Power Bank Portable External Battery Charger Pack [Dual USB Output] for Cell Phones & Tablets(Black) High capacity rechargeable power bank is perfect for power-hungry smartphones, tablets and other devices - Reliable and stable lithium polymer core ensures longer battery life supplying more than 500 charge cycles Dual USB charging ports lets you you charge up to two devices simultaneously - USB port 2.1 amp USB port allows for a maximum of 3.6 amps of total output can charge two smartphones simultaneously or an iPad mini individually Extreme Quality: Grade aaa cells and premium chips with10 intelligent protective systems to assure you highest safety,quality and reliability. More than 500 recharge cycles over the life of the battery for long-term usage. High input of 5V 2A - LHJ16000 can be fully charged in 8 hours, taking only half the time an external battery with a 1A input would Hard metal casing with a slim compact design edges make it more comfortable to hold, while its small size means that it can be put anywhere conveniently.