EZOPower External Backup Battery is the perfect solution for emergency power and power on the go. It can be recharged using provided USB cable and includes 2 USB output ports, allowing you to charge up to 2 devices at the same time. Battery provides up to 40 hours movie time for iPhone and up to 15 hours movie time for iPad. When battery is fully charged, it can be used to charge an iPhone up to 5 full cycles and an iPad can be charged to reach 80% capacity. This is the perfect unit for campers, travelers, or gadget enthusiasts. FEATURES 5 LED lights to indicate existing battery capacity 5 LED light sequential circuit cycles to indicate input charge, and automatically shuts off once fully charged Integrated microchip and auto detect feature prevents overcharging and short circuit Auto detect feature also recognizes when battery is in use and automatically shuts off after 30 seconds following charge completion or disconnection of cable(s) To charge a device simply connect it to battery, using your own or included cable/adapter, then push power button to begin charging Charge battery via PC, laptop, or USB AC wall adapter (Not included), by connecting the supplied cable to mini-USB input port Works with most original or generic USB cable(s), such as iPod/iPad cable Package Contents: Battery, mini-USB cable, adaptable USB cable, 10pc adapter connector tips (iPod/iPad tip not included) SPECIFICATIONS Battery Type: Lithium-Ion battery Capacity: 7800mAh / 29WH Input: Mini-USB ~ 5V 1000mA Output 1(S): USB ~ 5V 2100mA Output 2(I): USB ~ 5V 2100mA Dimension: 4.75in x 2.4in x 0.9in Weight: 7.05g COMPATIBILITY Cellphones, iPhone, iPod, iPad, Tablets, MP3, MP4, E-readers, Sony PSP, Nintendo DS, DS Lite, DSI, GPS, Digital Camera Note: Output 1(S) is for most Samsung Tablet Devices, Output 2(I) is for Apple iPad Devices. One year warranty from Manufacturer