13 promax battery health
My battery health reached 96% within 9 months, should I be worried? The routine of charging my phone is from 20% to 90%
iPhone 13 Pro Max, iOS 16
Question marked as
Your battery is doing better than average.
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%.
About Lithium Ion Batteries
iPhone Battery and Performance - Apple Support (IN)
Here are some tips on maximizing battery life.
Batteries - Maximizing Performance - Apple Batteries - Maximizing Performance - Apple