E-THINKER 5000 mAh Solar Pocket Power Bank Backup Battery and Solar Panel Charger for Cell Phones, iPhone, iPod, Samsung and Most USB Powered Devices 1, Feature: Large capacity, metal, ultra-thin design, intelligent technology, fine grade, applicable to the standby power of Iphone4/Ipad2, all mobile phones, MP3/MP4, digital cameras and other mobile digital products. With intelligent control circuitry to protect short circuit, overcharge, over discharge and over-current, ensure that the charging of your product will not be any harm, and with it let you travel worry-free; products in order to adapt the interface to unified specifications of digital products to use the USB2 .0 output ports, general-purpose appliance. 2, Instruction: When press the button, 4 LED lights on, battery power 100%; 3 LED lights on at the same time, battery power 75%, 2 LED lights on, battery 50%, 1 LED light on, battery power 25%;0 LED lights, battery power is about to run out, should catch up on power soon. 1.Mobile power recharging: the power adapter connected by cable and mobile power, access to electricity power,then can be charged.LED light will be flashing while charging, indicating that the internal battery is fully charged when four LED lights at the same time shining,then can stop charging..(charging time about 6.5 hours) 2.Recharging mobile phones and other digital devices: (as long as any digital device with a 5V adapter can use the mobile power charging) connecting the cable with cell phone or other digital devices, then can be charged, the charging indicator shows normal charging or not. 3, Package:A solar charger, an input / output charging cable, 5pcs conversion (approve for Apple IPHONE, Samsung V8, Nokia, Sony Ericsson V3), the instructions, a neutral box.