Enable Power Saving Mode:

NOTE: Using power saving mode you can limit the CPU performance, disable touch key lights, vibration feedback etc. This can greatly improve battery performance so use it when in need.

  1. Tap “Apps” on the home screen
  2. Go to “Settings”
  3. Swipe to “System” and tap “Battery”
  4. Tap the “Power saving mode” slider to “ON”
  5. Tap “Start power saving” and select a battery percentage at which the mode activates automatically

Enable Ultra Power Saving Mode:

  1. Go to “Settings”
  2. Swipe to “System” and tap “Battery”
  3. Enable the “Ultra power saving mode” slider
  4. Tap “Agree” in the terms and conditions pop-up
  5. After the mode activates, you can tap “+” to add additional apps to the home screen. These apps will run in Ultra power saving mode

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

NOTE: You can improve your phone’s battery life on the long run by disabling connectivity features when they are not in use (such as Wi-Fi, Hotspot, GPS, and Bluetooth).

  1. Tap “Apps” and go to “Settings”
  2. Swipe to “Connections”
  3. Tap the services you want to disable

Disable Background Data:

  1. Tap “Apps” > “Settings”
  2. Under “Connections” tap “Data usage”
  3. Tap “More” > “Restrict background data”
  4. Tap “OK” to confirm

Change the Sync Settings:

  1. Go to the phone’s “Settings” screen
  2. Tap “Accounts” under “Personal”
  3. Select an account
  4. Clear any check boxes associated with features you don’t want to sync
  5. When ready to save the changes, press “Menu” > “Sync now”

Adjust the Screen Brightness and Timeout Duration:

  1. Tap “Apps” on the home screen
  2. Go to “Settings”
  3. Tap “Display” under “Device”
  4. Tap “Brightness” and lower the level to reduce battery consumption
  5. Tap “Screen timeout” and allow the display to timeout faster (such as “15 seconds”)

Minimize the Use of Third Party Apps:

NOTE: Some of your third party apps run processes in the background even when you don’t use them. You can improve battery life by disabling or removing unused third party apps

  1. Tap “Apps” > “Settings”
  2. Under “Device” tap “Applications”
  3. Tap “Application manager”
  4. Swipe to “Downloaded”
  5. Select the desired app
  6. Tap “Disable” / “Force stop” or “Uninstall”

Switch from 4G to 2G:

  1. From “Settings”, swipe to “Connections”
  2. Tap “More connection settings”
  3. Tap “Mobile networks” > “Network mode”
  4. Select “GSM only”

Keep Your Phone Updated:

NOTE: Software updates can include improvements to battery life, so it’s recommended to keep your phone up to date. To check for new updates:

  1. Tap “Apps” > “Settings”
  2. Swipe to “System”
  3. Tap “About device” > “System updates”
  4. Follow the on-screen prompts if a new update is available

See More: Samsung Galaxy A8: Tips & Tricks to Improve Battery Life