![When should I replace my iPhone's battery? How to use Apple's battery health features - AppleToolBox When should I replace my iPhone's battery? How to use Apple's battery health features - AppleToolBox](https://appletoolbox.com/wp-content/uploads/2017/12/iPhone-Batteyr-health-important-message.jpg)
When should I replace my iPhone's battery? How to use Apple's battery health features - AppleToolBox
![Maximizing battery life on iPhone 6, 6s, 6 Plus, 6s Plus, 5, 5s | P&T IT BROTHER - Computer Repair Laptops, Mac, Cellphone, Tablets (Windows, Mac OS X, iOS, Android) Maximizing battery life on iPhone 6, 6s, 6 Plus, 6s Plus, 5, 5s | P&T IT BROTHER - Computer Repair Laptops, Mac, Cellphone, Tablets (Windows, Mac OS X, iOS, Android)](https://www.pntbrother.com/wp-content/uploads/2015/10/BATTERYLIFE.jpg)
Maximizing battery life on iPhone 6, 6s, 6 Plus, 6s Plus, 5, 5s | P&T IT BROTHER - Computer Repair Laptops, Mac, Cellphone, Tablets (Windows, Mac OS X, iOS, Android)
![Battery optimization still not working on my iPhone 11 Pro Max. I tried disabling this feature than enabling, use an alarm every day and get up same time, my percentage health dropped Battery optimization still not working on my iPhone 11 Pro Max. I tried disabling this feature than enabling, use an alarm every day and get up same time, my percentage health dropped](https://preview.redd.it/9fa6d2pp2yc41.jpg?width=640&crop=smart&auto=webp&s=52f66da56909b9fd44f9373b4799ea134f94b747)