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Troubleshoot shortened battery life on your Samsung Galaxy S III

Last Updated: Nov 20, 2014

This article helps you troubleshoot battery life issues on your Samsung Galaxy S III.

You may have battery issues if:

  • Your Samsung Galaxy S III® consistently displays a low charge
  • The battery drains quickly

Try each of these steps to see if it helps your charge last longer.

  1. In Sprint Zone browse Power Usage and learn how your current power settings affect battery life.

    1. From the home screen, tap the All Apps icon, then tap Sprint Zone.
    2. Swipe to the left to open Device Diagnostics.
    3. Tap Power Usage.
      • Power Usage Overview: Displays your current power usage level.
      • Power Usage Details: Shows your power usage over time and which features use your battery the most.
        • Battery Usage: Shows battery history and power usage of each app.
        • Current Power Settings: Shows settings that can affect battery life. Tap an item to change the setting.
        • Select Power Mode: Helps change settings to extend battery life.
      • Learn More: Provides more information on battery life.
  2. Change the power settings to Low Power.

    1. From within Sprint Zone, swipe to the left to open Device Diagnostics.
    2. Tap Power Usage.
    3. Tap Select Power Mode.
    4. Tap Apply.

      Note: If location services are enabled, they must be disabled manually. On the Select Power Mode prompt, tap the message, tap the Location switch to OFF and tap the Back key to return to Sprint Zone.

  3. Close or uninstall applications to improve battery life.

    • Some apps run in the background when you are not using them.
    • Also, some apps consume more energy than others.
    • Some apps come pre-loaded on your phone and you can't uninstall them.

    1. In Sprint Zone, swipe to the left to open Device Diagnostics.
    2. Tap Power Usage.
    3. Tap Battery Usage.
    4. Tap the application you want to close or uninstall.
      • Close (turn off) an application: Tap Force stop.
      • Uninstall (remove from phone) an application: Tap App info, Uninstall, and then OK.
  4. Verify that your Samsung Galaxy S III is running the most recent software.

    1. In Sprint Zone, swipe to the left to open Device Diagnostics.
    2. Tap System Updates.
    3. Tap Device Software.
    4. Tap Check now.
      • If an update is available, follow the prompts to install.
  5. Safely remove your SD card.

    1. From the home screen, tap the Menu key.
    2. Tap Settings.
    3. Tap the More tab.
    4. Tap Storage.
    5. Scroll to and tap Unmount SD card.
    6. Tap OK.
    7. Remove the SD card.
  6. Perform a soft reset.

    A soft reset restarts your phone and does not erase any of your content or data.

    1. Turn your phone off.
    2. Remove the battery. After 10 seconds, reinsert the battery.
    3. Turn your phone back on.
  7. Verify that your charger is working.

    Note: You risk severe damage to your phone if the charger isn't the same voltage, amps, and plug type as your original charger. You can purchase compatible chargers on sprint.com.

    1. Connect your phone to your charger.
    2. From within Sprint Zone, swipe to the left to open Device Diagnostics.
    3. Tap Battery Status.
    4. Verify that the battery status is Charging.

If you still have a battery issue, review these FAQs, dial *2 on your phone, or dial 855-639-4644 to reach Sprint Prepaid Customer Care.

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