Mini Universal mobile battery 1. Voltage: 3.7V 2. Capacity: 2100mAh/7.7Wh 3. Cell: Li-polymer 4. Input: DC5V/1A 5. Output: DC5A/1A USB:5.5V 6. Useful life: more than 5000 hours 7. Warranty: one year Compatible Mobile Phone: For all brand of mobile phone, like aplle iPhone,iPod,Nokia,LG,Samsung,Blackberry,Motorola etc. Shipping Policy: We usually use express, such as UPS,Fedex,DHL.EMS.TNT,and so on. WE would like to arrange Air-express and Ocean Shipping for you as you required. Payment Policy: •T/T: to our HSBC account •Western Union (500-2000USD) •Paypal (100-500USD) Emergency Battery for iPhone Mobile Phone