IwantOneplus! , Jun 6, 2019 : Hello, I am posting this to share my options I have set to save my battery life. If someone just bought this phone or if your someone who wants to maximize battery life post your settings here. So these are the things I did to optimize my battery and run my phone without having to compromise performance. 1. Enable Dark Mode. 2. Download amoled wallpaper app and pick dark wallpaper. 3. Disable WiFi and Bluetooth scanning. 4. Restrict background Data by turning that on under battery optimize settings 5. Go to settings and notifications turn off useless apps you don't use. 6. go to location settings turn off location for apps you think you don't need. 7. set screen timer to sleep for 30 seconds. max 1min if you want. 8. turn off NFC 9. Turn on Adaptive battery. 10. Turn on Deep optimization and sleep standby optimization under battery optimization-advance settings. 10 Any sort of sensor you don't need. ex. raise to wake. double tap to wake. 11. Turn off 90HZ and Lower screen resolution. (Highly not recommend) why buy the OnePlus phone right? 12. animation scale to .5x 13. download Kiwi browser and turn night mode on. 14. restrict Google play services under data background This is what I have applied and it's giving me good battery life and still run phone smoothly and fast. by end of day I'm at 45/50%. If I am missing anything please share. Please Add to the list in your replies. Thank you.