Battery health
Is it normal for my battery decrease by 3% within a month?
During the first four months my battery health was 100% and suddenly it decreased from 99% to 95% within 3 months. Is there a problem in my battery?
iPhone 13, iOS 16
Hello,
Depending on usage, that is normal and is nothing to worry about. Generally, Apple will replace the battery under warranty if the battery health falls below 80% during the first year.
See this link by Lawrence Finch for some battery charging tips:
When to charge your iPhone or iPad
Good luck.