Why is my iPhone is suddenly power off when i charge and it take to long to open it ?
It suddenly went off and it take to long to turn on, its like my phone went dead
iPhone SE, iOS 16
Question marked as
Your battery may need replacing.
Batteries degrade over time with usage due to chemical aging, that's just how they work.
You can expect about a 1% drop per month with average use on an iPhone.
Apple recommends replacing it when it reaches 80%. To check your battery health, go to Settings > Battery > Battery Health.
iPhone Battery Replacement.
iPhone Battery Repair & Replacement - Apple Support
About Lithium Ion Batteries
iPhone Battery and Performance - Apple Support (IN)