Enable Battery Saving Mode for Location:

  1. Open the apps drawer
  2. Access “Settings
  3. Tap “Location” under “Personal
  4. Tap “Mode” and select “Battery saving

Disable Wi-Fi, Hotspot, GPS, and Bluetooth:

NOTE: By disabling your phone’s connectivity features when they are not in use (such as Wi-Fi, Bluetooth, GPS, and Hotspot), you should be able to improve the phone’s battery life in the long run.

  1. Open the apps drawer
  2. Access “Settings
  3. Tap the “Wi-Fi” and “Bluetooth” sliders and set them to “OFF
  4. From the “Settings” screen, tap “More” under “Wireless & Networks
  5. Tap “Mobile Hotspot” and set the switch to “OFF
  6. Return to the “Settings” menu, and swipe to “Personal
  7. Tap “Location” (GPS) and set turn the feature “OFF

Lower the Screen Brightness and Timeout Duration:

  1. Open “Settings
  2. Tap “Display” > “Brightness level
  3. Make sure “Automatic brightness” is disabled
  4. Drag the brightness slider towards the left side to decrease luminosity
  5. From the “Display” menu, tap “Sleep
  6. Select a lower value for screen timeout, like “15 seconds

Change Sync Settings:

NOTE: By setting your phone to sync less data or less often, you can improve battery life in the long run.

  1. Open the apps drawer
  2. Launch “Settings
  3. Swipe to “Personal” and tap “Accounts
  4. Select the account you want to change settings for
  5. Clear the sync options you desire, then tap “Menu” > “Sync Now” to save the changes

Disable Background Data:

  1. First go to “Settings
  2. Tap “Data usage
  3. Press “Menu
  4. Enable “Restrict app background data

Minimize the Use of Third Party Applications:

NOTE: Certain third party apps can have a negative effect on your phone’s battery performance even when you don’t use them – assuming that the apps run regular processes in the background. As such, you should be able to improve battery life by disabling or removing unused third party apps.

  1. Open the “Settings” menu
  2. Swipe to “Device” and tap “Apps
  3. Swipe to “Downloaded
  4. Select the desired app
  5. Tap “Disable”, or alternatively, tap “Uninstall” > “OK

Use 2G Connectivity Instead of 4G:

  1. Access the “Settings” menu
  2. Tap “More” > “Cellular networks
  3. Tap “Preferred network type” > “2G only

See More: ZTE Grand X2: Tips & Tricks to Improve Battery Life