Install package disabler pro 15.0
Its working for android 9
Disable the unneccesary apps
always on feature
And use medium power saving mode
U will get 8 hours of screen time
my battery is still 53 percent and screen time is 4 hours now
its been a day left
still i have 53 percent battery
I didn't know you could disable playservices... are you sure that doesn't bring any problems?
Also, do you let your phone fully discharge and charge?
This was exactly my thought GPS is important for all of your apps...