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
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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.