How does oppo view the percentage of battery health?

The setting method of the battery percentage displayed in the status bar of mobile phone: 1, ColorOS 1 1 or above. Go to settings > battery > more > and turn on "show battery percentage in status bar". 2. version 7.0-7.2 of coloros, go to "settings > battery > turn on" display power percentage in status bar ". 3. in coloros version 3.0-7.2, go to settings > notifications and status bar > turn on power percentage. This answer applies to all OPPO models.