Monitor and Extend the Battery Life on Your Galaxy J3 and J7
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
Navigate to Apps > Settings.
Touch Search, then search for and select Battery.
Touch BATTERY USAGE.
The estimated past and predicted usage time is displayed. The last full charge and the estimated usage time remaining will also be displayed.
Power Saving Mode
Navigate to Apps > Settings > Device maintenance.
To extend your battery life, select the desired mode.
To turn off the feature, navigate to Apps > Settings > Device maintenance.
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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