With Portable Battery Chargers, users can charge mobile devices anywhere, without having to plug into AC power outlet. Four models with 2,600, 5,200, 10,000, and 12,000 mAh capacities provide hours of charge time. All include battery capacity indicator LED and protect against short circuits, overvoltage, over-current, overcharges, and overdischarges. Models rated at 10,000 mAh and 12,000 mAh also include LED flashlight function and 2 USB ports for simultaneous charging of devices.