1,3500mah 2,perfect for htc one x g23 3,Battery type: Li-ion 4, half year warranty 5,fast shipping 3500mAh Backup external Battery/Portable Power Bank for htc one x G23 work for samsung ... . Test button on the back for testing remaining power Capacity: 3500mAh Battery type: Li-ion polymer Input: 5V 500mA Output: 5V 500mA Package : 3500mAh Mobile Phone Battery for htc one X G23