HP Portable Power Pack - 2600 mAH - T7U13AA#ABL Keep on talking, knowing you can recharge whenever and wherever. A full charge for most smartphones with protection for heat, overcharge, and undercharge. Tested, reliable, and backed by a 1-year limited warranty. LED remaining charge indicator, Capacity: 2600 mAH Output: USB type A output rated at 5V/1A (max)/5W(max), Input: Micro USB port rated at 5V/1A