dual output power bank 12000mA dual output power bank for mobile Specifications:Capacity:12000MaN.W.:247GInput: 5V – 1AOutput: ... ,then, just one USB port working and output current. Both USB ports can supply power at the same time when current of device ... ,such as for iPad, iphone, iPod, Blackberry, HTC etc. 12000mA dual output power bank for mobile