Samsung SPH-m50 User Manual page 16

Note: Long backlight settings, low signal strength, searching for service, vibrate
mode, playing games, or browser use affect the battery's talk and standby times.
Tip: Be sure to watch your phone's battery level indicator and charge the battery
before it runs out of power.
Installing the Battery
To install the LiIon battery:
Insert the battery into the opening on the back of the phone at an angle,
1.
making sure the plastic tab on the bottom of the battery is inserted into
the matching slot in the phone.
10 Getting Started