Use optimized battery charging
Keep battery charge between 20% and 80% when possible
Avoid letting the battery drain to 0%
Avoid keeping the phone at 100% for long periods
Use certified or original charging accessories
Avoid excessive heat exposure
Remove thick cases while charging if the phone gets warm
Turn on Low Power Mode when needed
Reduce screen brightness
Use Wi-Fi instead of cellular data when possible
Disable background app refresh for unnecessary apps
Limit location services for apps that do not need it
Update iOS regularly
Avoid fast charging all the time
Store the iPhone in a cool, dry place
Restart the iPhone occasionally
Check battery usage and remove power-hungry apps
Replace the battery when maximum capacity becomes too low