We can view the OnePlus smartphone's battery usage to see in detail which apps have used the battery since the last full charge.

You can also view the battery usage of apps or full device usage.

Android 10 | OxygenOS 10.0
Detailed battery usage -  Open the  Settings
Detailed battery usage -  Tap on  Battery
Detailed battery usage -  Tap on  View detailed usage
Detailed battery usage -  Open the  menu
Detailed battery usage -  Tap on  Show full device usage
  1. Open the Settings
  2. Tap on Battery
  3. Tap on View detailed usage
  4. Open the menu
  5. Tap on Show full device usage

OnePlus Instructions
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