Every iPhone I’ve had, this has never happened. I take care of my battery but since iOS 17 my battery drain is really bad and I went from 100% battery health to 95%. I’m now currently on iOS 17.1.1 and still no improvement. I spoke to Apple and they did a diagnostic test and said everything is fine, but I don’t think dropping 5% since an current update is “fine”
iPhone 14 Pro Max, iOS 17
iOS updates generally aim to enhance user experience, boost security, and fix bugs rather than disrupt core features. Battery health issues after updates might stem from underlying, unmentioned factors. Updates won't typically alter personal data but may refine settings or features. Backup before major updates for safety. Review Apple's update details and backup advice for a smooth process.
This seems purely coincidental so please check the Setting on your device.
The measure of battery health deterioration/drainage is subjective and can vary depending on individual usage patterns and not iOS version updates. There is no universal standard to determine whether the battery health deterioration/drainage is normal or abnormal because it heavily relies on how the battery is used and maintained.
Protect & Prolong the Life of your iPhone's Battery:
See what each update does: About iOS 17 Updates, About iOS 16 Updates, About iOS 15 Updates, About iOS 14 Updates, About iOS 13 Updates, About iOS 12 Updates, and so on...
After iOS 17 battery health dropped from 100% to 95%
