Don't worry about a dead battery when you've got the Concept Green Portable Charger with 5200mAh Battery. This portable battery is perfect for charging your phone, tablet, and so much more. It features a single USB port with an output of 2A, so you can easily charge your tablet, and has a capacity of 5200mAh for up to 35 hours talk time, 78 hours listening time, and 17 hours Internet time. The battery is compatible with the USB charging cables you already own and use for tons of compatibility with your devices, and comes with a 2-in-1 MicroUSB/30-Pin charging cable for charging the battery or your device.