See what your phone, if you can directly button the battery, this battery is generally three contacts, the two sides are positive and negative, charging the USB plug (insert the phone hole that end), the outer ring that layer of iron and the middle hole in the contact is positive and negative, you just want to find a way to pull out the two wires to connect the phone can be opened; If your mobile phone can not be buckled, it is easier to open the mobile phone after the fixed battery should be fixed screw, two screws is the positive and negative machine, directly connected to OK!