A battery is the source of power for your cellphone. Therefore， if the battery runs out of power quickly， it really casts a damp over users. However， keeping an extra battery enables you to enjoy endless pleasure with your cellphone and this 6800mAh 5V Li-polymer Battery Power Bank would be your best choice. The battery bears the properties of high capacity and dependable performance. It is durable， reliable and lightweight to carry， so it is worthy of your ordering. With this power bank， you can keep contact with your friends and family anytime and anywhere. It won’t let you down.                                    Features            Portable and convenient and rapid chargeElectricity-saving function， long cycle lifePowerful with long operation timeExquisite design， made of high qulity materialCompatible with: MP3/4， iPod， PSP， iPad 1， iPad 2 !#!amp!*! iPhone， Samsung P1000， ViewPad or Tablet PC mobile phoneMobile power storage， portable for both in door and outsidePerfect power supply for business trip， tranvel， field work， etc                                                             Specifications             Battery Type     Li-polymer Battery    <br> Capacity     6800mAh    <br> Input Voltage     DC 5V    <br> Input Current     1A (Max)    <br> Output Voltage     DC 5V    <br> Output Current     1.0A， 2.1A    <br> Dimensions     (4.41 x 2.87 x 0.67)" / (11.2 x 7.3 x 1.7)cm (L x W x H)    <br> Color     Black    <br> Weight     8.39 oz / 238 g    <br> Compatible with     MP3/4， iPod， PSP， iPad 1， iPad 2 & iPhone， Samsung P1000， ViewPad or Tablet PC mobile phone      <br>                                                             Package Includes            1 x Power Bank<br>1 x USB Cable<br>9 x Power Transfer Interface<br>