I keep location services for apps while running just for Google Maps
The most important thing is to turn off background app refresh for ALL apps except the ones that matter most like messaging (ie. Whatsapp) and email. Rest you can only have them refresh when you open them. That will make a night and day difference.
Also don't put the screen brightness on max, 70% is a good medium.
I got 3 days battery life from my iPhone 11 Pro the way
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