Samsung SGH-T839 User Manual (user Manual) (ver.f9) (English) - Page 18

3. While holding onto both sides of the phone, use your thumbs to push against the bottom edge of the LCD (2). After the initial push, the LCD will then quickly slide away to reveal the QWERTY keyboard (3). 13 Extending Your Battery Life Active applications, light levels, Bluetooth usage, and GPS functionality all act to drain your battery. The following is a list of helpful tips that can help conserve your battery power: • Use the Power Control shortcut bar. • Reduce your backlight on time. • Turn Bluetooth off when not in use. • Turn Wi-Fi off when not in use. • Deactivate the GPS when not needed. Most applications using this function will periodically query the GPS satellites for your current location; each query drains your battery. • Do not wait until your battery is completely depleted before charging your device. Repeating this process of a complete discharge and recharge can over time reduce the storage capacity of any battery. • Turn off Automatic application sync. • Use the Power Control Widget to deactivate hardware functions such as Wi-Fi, Bluetooth, GPS, Synchronization, or LCD brightness setting. • Check the Battery use screen to review what features or functions have been consuming your battery resources. • Check the Running Services and close any unnecessary applications. • Use the Task Manager feature to end/shutdown background applications that are still running. These minimized applications can, over time, cause your device to "slow down".