Bought the iPhone 12 when it was released. Battery health always read 100% until a little over a month ago. After the last update for 14.6 it went down to 98%. I don't have anything extra on at all and I don't play games on the phone. Just a little troubling that maybe the battery is starting to fail early or did the update cause something to affect it. Any answers would be welcome. Thank you.
iPhone 12
Battery health does not always display a drop in a linear fashion. If you bought the iPhone 12 last September and it's at 98%, your battery is just fine, even a little better than average. If it drops below 80% while under warranty, it will be deemed to have failed prematurely and will be replaced by Apple.
Click on this link about 'iPhone Battery and Performance' to read about the battery health feature and what is considered normal performance --> https://support.apple.com/HT208387
Click on this link to read 'About Optimized Battery Charging on your iPhone' --> https://support.apple.com/HT210512
- With iOS 13 and later, your iPhone learns from your daily charging habits to improve the lifespan of your battery.
- Settings > Battery > Battery Health > Optimized Battery Charging
Battery health- iPhone 12
