Description: 

It is a specially designed rechargeable battery pack for XBOX ONE controller.

It has long using life--- the built in NI-MH battery can recycle over 500 times.

Easy to use---just need to connect the battery pack with the usb power output sockt by the attached power cable.  The power indicator will light up red while charging and will light off once it is full charged.

Features:

Battery capacity:NI-MH 1200MAH

Input: DC 5.0V

Output:DC2.4V-3.0V