The dual output allows you to charge 2 devices at the same time. You can charge your devices from dead to full battery at least twice before you need the recharge the PowerPack. The PowerPack only takes 7 hours to charge fully on a wall adapter or 12 hours to charge fully on a laptop/computer. It features 5000mAh lithium polymer battery, strong shockproof and drop resistant design. Dual USB and micro USB ports, and has a 5 LED indicator to show how much charge is left on the battery.
Specifications: Input: DC 5V/ 1A, Output: DC 5V/ 1 x 1A, 1 x 2.1A, Compatible with most devices that use a USB cable to charge
Package Includes: 1 x POWERPACK charger, 1 built in micro USB charging cable, 1 built in USB charging cable, 1 x user manual. The POWERPACK pairs well with the foldable solar charging pack.