1. Access Usage Manager to determine what apps and features are consuming battery power. Tap Stop next to any apps you are not using to conserve battery power.
   Note: From the home screen, swipe to then tap the AT&T folder > Tap 'Usage Manager' > Tap the 'Battery' tab > Scroll to 'BATTERY USE DETAILS'
   
2. Turn on Battery saver to prolong battery life.
   Note: From the home screen, swipe down from the Notification bar > Tap the Settings icon > Tap the 'General' tab > Tap 'Battery' > Tap 'Battery Manager' > Tap the 'Battery saver' switch
   
3. Reduce the screen Brightness.
   Note: From the home screen, swipe down from the Notification bar > Tap the Settings icon > Tap the 'Display' tab > Drag the Brightness slider to the desired level
   
4. Set the Screen timeout to a shorter duration.
   Note: From the home screen, swipe down from the Notification bar > Tap the Settings icon > Tap the 'Display' tab > Tap 'Screen timeout' > Tap the desired option
   
5. Toggle Bluetooth, Wi-Fi, Location, and NFC off while not in use.
   Note: From the home screen, swipe down from the Notification bar > Tap the desired icons
   
6. Avoid using Live wallpapers, as they consume more battery life.
   Note: Touch and hold an empty area of the home screen > tap 'Wallpapers' > Tap the desired option
   
7. Disable the Auto-update apps feature in the Play Store, as downloads will consume additional battery life.
   Note: From the home screen, tap 'Play Store' > Tap the Play Store tab > tap 'SETTINGS' > Tap 'Auto-update apps' > Tap 'Do not auto-update apps'
   
8. Toggle Auto-sync features off to prevent applications from downloading content.
   Note: From the home screen, swipe down from the Notification bar > Tap the Settings icon > Tap the 'General' tab > Tap 'Accounts & sync' > Tap 'Auto-sync data'
   
9. If you are traveling and do not have access to mobile or Wi-Fi networks, switch to Airplane mode.
   Note: Press and hold the Power/Lock key > tap 'Turn on Airplane mode'