Has your battery life been worse on Android 9 Pie? [Poll]
Android 9 Pie Feature Focus: Adaptive Battery - Thurrott.com
P is for Power”—Android engineers talk battery life improvements in Android P | Ars Technica
Android 9 Pie: everything you need to know | Android | The Guardian
How do I configure battery settings with Android™ 9 on an Android™? – Covenant Eyes
9+ hours screen on time on android 13 on my op8 (also note brightness has been above 50% during the whole time and my battery health is at 80%) : r/oneplus