More than 2X your battery
Specifications
Weight: 58g
Capacity: 1700mAh

USB build in
Cell type: Li Polymer battery
Dimension:62×59×12.4(mm)
Output voltage:5V
Output current:700 mA max
Cycle life: 500times
Function& character:
power check& indication
plug and play
Streamline
Signature:
Standby Time – Up to 320 hours
Talk Time – Up to 5 hours on 3G | Up to 11 hours on 2G
Internet Use – Up to 5 hours on 3G | Up to 6 hours on Wi-Fi
Audio Playback – Up to 24 hours
Video Playback – Up to 7 hours