There are different features such as watching YouTube, listening to music, programs running in the background, using Wi-Fi and Bluetooth®, constantly synchronizing e-mail that can drain the battery quickly.
To improve battery life, refer to the following information:
When your device is not in use, press the Power button to switch off the screen. Select a shorter idle time before the phone screen switches off and lower the screen brightness. To do this, press HOME > MENU > Settings > Display > Brightness and Screen timeout.
Use the AC adapter to plug your device into an external power outlet whenever possible.
Turn Bluetooth and Wi-Fi off when you are not using it. To do this, press HOME > MENU > Settings > Wireless & Networks.
Turn off your phone connection to GPS satellites when not in use. To do this, press HOME > MENU, tap Settings > Location, then clear the GPS satellites option.
**For quicker access to enable/disable Wi-Fi, GPS, Bluetooth, etc, touch and hold on the Home Screen and Widget>Power Control. Add this Widget to your home screen.
Close battery-intensive programs, such as the Camera, when you are done using them.