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Monitor and Extend the Battery Life on Your Galaxy J3 and J7

Samsung J3/J7 Monitor Extend Battery Life

Forgot to charge your phone the night before and now low on battery? Don't fret, with the J3 or J7's ability to use the remaining battery life efficiently, your J3 or J7 won't die without a fight. You can also check which apps drain your battery and monitor how your battery is being used. Learn to adjust your brightness for a quick fix to extend your battery life!

The available screens and settings may vary by wireless service provider and software version.

Monitor Battery Life

  1. Navigate to Apps > Settings.

  2. Touch Search, then search for and select Battery.  

  3. Touch BATTERY USAGE.

    Samsung J3/J7 Monitor Extend Battery Life
  4. The estimated past and predicted usage time is displayed. The last full charge and the estimated usage time remaining will also be displayed.

    Samsung J3/J7 Monitor Extend Battery Life

Power Saving Mode

  1. Navigate to Apps > Settings Device maintenance.

  2. Touch Battery.

  3. To extend your battery life, select the desired mode.

    Samsung J3/J7 Monitor Extend Battery Life
  4. Touch APPLY.

    Samsung J3/J7 Monitor Extend Battery Life
  5. To turn off the feature, navigate to Apps > Settings Device maintenance.

    Samsung J3/J7 Monitor Extend Battery Life
  6. Touch Battery.  

    Samsung J3/J7 Monitor Extend Battery Life
  7. Touch OFF.  

    Samsung J3/J7 Monitor Extend Battery Life

Battery Basics

Ways to charge your battery properly and safely:

  • To charge your device, use only the supplied Samsung USB/charging cables and avoid third-party accessories.

  • Ensure the USB/charging cable is connected securely and is not being blocked by your device cover or case.

  • Make sure the battery or charging indicator appears on the device's display when the USB/charging cable is connected.

  • Use the outlet on your wall instead of your computer.

  • Disconnect the device from the USB/charging cable after the battery is fully charged.

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