Never be without power again! The Coghlan's 6000 mAh Portable Power Pack provides power to your smartphone, digital camera, or tablet anywhere you go. Recharge the Power Pack by USB, solar, or dynamo cranking. The Portable Power Pack stores power in high grade lithium polymer cells for later use. The durable case is water resistant and can be stowed away in your backpack or pocket. Charge the Power Pack via the supplied USB cable, solar panel, or dynamo crank Recharge your device with the supplied Micro USB connector Includes a bright LED light 6000 mAh power LED indicators show charge level Fully charges most smartphones 3 times When Power Pack is fully charged. Based on a 2000 mAh battery.