iPhone battery health
I have been using my iPhone 11 for about 9 months. I bought it in June or July. My battery health is already 85%. This is really bothering me. The battery was really good at the start but then it dropped like anything.
Can I get the battery replaced for free because the phone is still in warranty?
And another small thing.. When we get the battery replaced, is the charging port replaced too?
iPhone 11, iOS 14