You can set the display battery percentage to be displayed inside the battery icon, and the battery percentage to be displayed outside the battery icon, or not to display the battery percentage.
Setting method:
realme UI 1.0 & above versions: Settings > Search " Battery Percentage" in the search bar > Battery Percentage/Show Battery Percentage on Status Bar.
realme UI R & Go & S & T & U Edition: Settings > Search " Battery Percentage" in the search bar > Battery Percentage.
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How to use Wise charging or Optimized night charging
How to set Super power saving mode