Samsung SGH-T539ABBTMB - Manual (Page 15)

Getting Started 12
Activating Your Phone
3. When charging is finished, unplug the Travel Adapter from the power outlet
and then disconnect it from the phone.
Important!: You must unplug the Travel Adapter before you remove the battery from the phone during
charging; otherwise, the phone could be damaged.
Low Battery Indicator
When the battery is weak and only a few minutes of talk time remain, a warning tone
sounds and the “Warning low battery” message repeats at regular intervals on the
display. When this happens, your phone turns off the backlight to conserve the
remaining battery power.
When the battery level becomes too low, the phone automatically turns off.