Enable Power Saving Mode:

  1. Tap “Apps” on the home screen
  2. Go to “Settings”
  3. Scroll to “System” and tap “Battery”
  4. Tap “Power saving mode” to enable the feature
  5. To adjust how power saving mode works, tap “Start power saving” and select a battery percentage

Lower the Screen Brightness and Timeout Duration:

  1. Tap “Apps” on the home screen
  2. Open “Settings” and scroll to “Device”
  3. Tap “Display” > “Screen timeout”
  4. Select a lower timeout value, such as “15 seconds”
  5. Disable “Automatic brightness” if necessary, and then drag the brightness slider to the left

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

NOTE: You can improve battery life in the long run by disabling the phone’s connectivity features when not in use.

  1. Go to “Settings”
  2. Scroll to “Connections”
  3. Tap the connectivity options you need to disable (such as Wi-Fi and Bluetooth)
  4. Tap “Tethering & mobile hotspot” and set the feature to “OFF”

Disable Background Data:

  1. Open the apps drawer and go to “Settings”
  2. Tap “Data usage” under “Connections”
  3. Tap “More” > “Restrict background data”
  4. Tap “OK” to confirm

Change the Sync Settings:

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

  1. Open the apps drawer and launch “Settings”
  2. Tap “Accounts” under “Personal”
  3. Select the desired account
  4. Clear the check boxes associated with the sync options you want to disable
  5. Tap “Menu” > “Sync now”

Minimize Third Party App Usage:

NOTE: Certain third party applications can affect your battery life even when you don’t use them. This is due to the fact that some applications run regular background processes. As such, disabling or removing unused third party apps can improve battery life.

  1. Tap “Apps” and go to “Settings”
  2. Tap “Applications” under “Device”
  3. Tap “Application manager”
  4. Swipe to “Downloaded” and select the desired app
  5. Tap “Uninstall” or choose to disable the app temporarily

Use 2G Instead of 4G:

  1. Open the “Settings” menu
  2. Tap “More connection settings” under “Connections”
  3. Tap “Mobile networks” > “Network mode”
  4. Select “GSM only” to restrict connectivity to 2G

Update the Firmware:

NOTE: Software updates can include battery life improvements, thus you should keep your phone OS up to date at all times. To check for updates:

  1. Access the “Settings” menu
  2. Scroll to “System" and tap “About device”
  3. Check if a new update is available, and if yes, follow the on-screen steps to download and install it

See More: Samsung Galaxy J3: Tips & Tricks to Improve Battery Life