Samsung SPH-m320 User Manual page 18

•
To remove the battery, pull the top of the battery away from the
phone (1) and disconnect it (2).
•
To insert the battery, insert the battery into the opening on the back of the
phone at an angle (3), making sure the metal contacts on the battery
connect with the matching connectors in the phone. Press down until the
battery snaps into place (4).
10 Getting Started