Open battery usage first so you can see what is draining power before you change a dozen settings.
Open battery usage
Check which app or service is draining power before you change random settings.
Trim background drain
Restrict always-on sync, location, and background refresh for the worst offenders.
Lower screen and heat load
Reduce brightness, refresh rate, or always-on display if the phone is staying warm.
Update and restart once
Bring the system and the main draining apps up to date, then reboot cleanly.
Test one normal day
Use the phone normally and watch whether drain improves before replacing the battery.
- Battery swelling or shutdowns start appearing
- The phone gets very hot while charging
- The charge level jumps wildly after basic checks
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