iLuv 5200 mAh Portable Power Bank with Smart Charging Technology, Safety Design, LED Indicators, and LED Flashlight for iPhone, iPad, Smartphones, Tablets, and Other USB Devices DESIGNED FOR SAFETY - myPower 5200 is constructed with Grade A cells from LG that ensure high-performance charging. Advanced circuitry prevents it from overcharging, overheating and damaging a connected device, so you can always charge safely. 5200 MAH OF POWER TO CHARGE YOUR DEVICE - myPower 5200 is fully capable of charging almost any USB device, such as smartphones, tablets, e-readers, portable speakers, and more. 5200 mAh capacity can fully charge an iPhone 5s 3.5 times or a GALAXY S5 twice. SMART POWER FOR SMART CHARGING - Smart power function turns battery on/off automatically when a device is connected or removed. With Smart Charging Technology it can automatically detect type of device connected and provides maximum charge output. PORTABLE POWER - You never know when your device might need a power boost, so bring myPower 5200 with you wherever you go. Compact and lightweight, this battery pack slips easily into bags and purses so you can bring it with you when you're on the move. LED INDICATORS AND FLASHLIGHT - It features four LED indicators that let you know the remaining charge left within the battery pack. Theres also a built-in LED flashlight for emergency situations. Its a great battery pack to bring along while traveling.