Enable Battery Saving Mode:

  1. Open the apps drawer
  2. Go to “Settings
  3. Scroll to “System” and tap “Battery
  4. Turn “Battery saving mode” ON
  5. Tap “Start power saving” and select a battery percentage for the mode to enable automatically

Lower the Screen Brightness and Timeout Duration:

  1. Go to “Settings
  2. Scroll to “Device
  3. Tap “Display” and turn “Automatic brightness” OFF
  4. Drag the brightness slider towards the left side of the screen to decrease brightness
  5. Return to “Display” and tap “Screen timeout
  6. Select a lower value such as “15 seconds

Disable Unused Connectivity Features and Switch to 2G:

NOTE: By disabling the phone’s connectivity features, including Wi-Fi, Bluetooth, GPS, and Hotspot when they are not in use, you can improve battery life in the long run. Additionally, to conserve battery life until the next recharge you can temporarily switch to 2G networks.

  1. Go to “Settings
  2. Access “Connections” and disable the desired connectivity options
  3. Tap “Tethering & mobile hotspot” and set the option OFF
  4. To switch to 2G networks, scroll to “Connections
  5. Then tap “More connection settings
  6. Tap “Mobile networks” > “Network mode
  7. Enable “GSM only

Minimize Third Party App Usage:

NOTE: Certain third party applications perform regular background processes, and as such they can potentially affect battery life even when they are not in use. Thus, by disabling or uninstalling unused third party apps from your phone, you might improve battery life in the long run.

  1. Tap “Apps” on the home screen
  2. Access “Settings
  3. Scroll to “Device
  4. Tap “Applications” > “Application manager
  5. Go to the “Downloaded” tab and select the desired app
  6. Tap “Disable” / “Force Stop” to disable the app
  7. To remove the app, tap “Uninstall” > “OK

Change Settings to Reduce Sync:

NOTE: By changing your accounts’ settings to reduce sync, you can improve battery life.

  1. Open the apps drawer
  2. Go to “Settings
  3. Tap “Accounts” under “Personal
  4. Select an account type and the desired account
  5. Clear the check boxes next to the sync options you want to disable
  6. Tap “Menu” > “Sync now” to confirm

Disable Background Data:

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

Keep the Software Updated:

NOTE: Some software updates can improve battery life, and thus it’s recommended to keep the OS up to date at all times. To check for OS updates:

  1. Open “Settings
  2. Scroll to “System” and tap “About device
  3. Follow the on-screen instructions to download and install any available updates

See More: Samsung Galaxy A3 (2017): Tips & Tricks to Conserve / Improve Battery Life