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Samsung Galaxy S9 / S9+ - View / Extend Battery Life

2026-10-22 22:07:30.91

Samsung Galaxy S9 / S9+ - View / Extend Battery Life

Here's how to extend battery life, view charging status / remaining battery and determine what uses the most power on your Galaxy S9 / S9+.
  • Battery life is measured by standby time and talk time.
    • Standby time is the amount of time the device stays powered on with no voice, data or other usage.
    • Talk time is based on voice usage.
    • Using data such as web browsing, apps, or streaming reduces overall talk time.
  • Apps and processes are listed from highest to lowest percentage of power consumption. Review any high or unusual usage or battery percentage drain.

Battery Usage

  1. From a Home screen, swipe up or down from the center of the display to access the apps screen.
    These instructions only apply to Standard mode and the default Home screen layout.
  2. Navigate:
    Settings Settings icon
    Device care
    Battery
    .
  3. Tap
    Battery usage
    .
  4. From the 'Last 7 days' graph, select a date to view the battery use and charging time.
    Usage details appear in the daily graph below.
  5. From the daily graph, tap a time period (e.g., 8 - 12 PM) to view usage details.
    Percentage indicates how much battery usage occurred for each app listed.
To improve battery life, you can:

Show Battery Percentage

When turned on, the remaining battery percentage is displayed on the status bar.
  1. From a Home screen, swipe up or down from the center of the display to access the apps screen.
    These instructions only apply to Standard mode and the default Home screen layout.
  2. Navigate:
    Settings Settings icon
    Notifications
    .
  3. Tap
    Status bar
    .
  4. Tap the
    Show Battery Percentage switch
    to turn on Switch on icon.
To improve battery life, you can: