




ok Mate let me start
first i don't use google now / assistant and so on
No ****book app

i disabled all the stuff that i dont need---i turn it on when i need
turned off:
settings -->Wi-Fi-->settings wheel at the top-->all off---smart wifi switcher /scanning always/network notification
Bluetooth
GPS location
NFC--Daydream--all heptic feedback /vibration from apps and so on
all gestures in setting disabled
adaptive brightness
inactive display
settings-->battery-->3dot menu-->strikt standby activate
settings-->accounts-->google-->disabled all sync (i enable it when i add a new contact or a new date in my calendar)
then go back settings-->accounts-->3 dots automatic sync disable
settings-->backup&reset-->backup my data-->off
settings-->advance-->pocket mode--off
settings-->advance-->recent app management-->normal clear
settings-->developer opt.-->doze mode----then scroll down -->App WLAN Multi/Broadcastting Filter-->on
scroll down--->window and transition scale-->to 0.5
scroll down -->force GPU rendering-->on
apps
google play store-->settings--do not auto update app/apps were auto-updated-->off
google chrome-->settings-->data saver on
or like me with RS Browser-->settings-->Power save mode-->on
ok Mate i hope i can helped you with some stuff
If I should have forgotten something,i'll update this post
look at the screens
this was yesterday and today just on wifi....but with NO airplane mode
cheers
@sarkar_007
you can fix Android_os drain by settings-->backup&reset-->backup my data-->off