Why is the iPhone battery health 90% but still the phone randomly shuts down at 86% charge? It doesn't charge beyond 84-85%. The device is an iPhone 12 Pro. - Quora
![How Siri Can Get Your iPhone Battery to Last 38% Longer | by Josh Adams | Intention Deficit | Medium How Siri Can Get Your iPhone Battery to Last 38% Longer | by Josh Adams | Intention Deficit | Medium](https://miro.medium.com/v2/0*5R3fT-9b-8Y3jCC2.jpg)
How Siri Can Get Your iPhone Battery to Last 38% Longer | by Josh Adams | Intention Deficit | Medium
Why does my iPhone 6s die at 70%? It used to die at 10 then slowly increased to now 70 and it lags really bad at 71%. - Quora
![My friend's sister has used her iPhone 7 for 8 years. She never replace her battery because the concept of replacing batteries is strange to her. Why is her battery health percentage My friend's sister has used her iPhone 7 for 8 years. She never replace her battery because the concept of replacing batteries is strange to her. Why is her battery health percentage](https://preview.redd.it/my-friends-sister-has-used-her-iphone-7-for-8-years-she-v0-3t4pbhqgpow91.jpg?width=640&crop=smart&auto=webp&s=a4b11f96657b2e30c53b860d3731c17baa428004)