Battery health

As QuicktimeKirk said, there's nothing wrong with your battery. Battery Health is, at best, an estimate. Unless you're checking it at the same time in the charge cycle (it appears to be most accurate just after completely charging the phone), you may not be getting very useful information.

Unless there's something wrong with your phone or you're getting close to the end of your warranty period, there's not much point in bothering with that number at all.

In the five or so iPhones I've owned, I've personally never seen a battery degrade that fast that wasn't defective. So based on my limited, strictly anecdotal experience, I would say yes, contact Apple. Even if they can't (won't) do anything for you now, if your battery gets worse later, the fact that you registered a concern earlier may help you get a better resolution later.

This is a user-to-user forum. It really doesn't constitute registering anything with Apple. If the battery capacity drops to below 80% while it's under warranty, Apple will replace it.

I believe I was pretty clear in my wording of "contact Apple" as how to register a concern with Apple, snd didn't say anything to suggest that these forums were how to contact Apple. I have had technician's advise me to do this, and have had positive out of Warranty outcomes as a result of pre-registering a potential problem within warranty periods.

I've been disproportionately unlucky with defective batteries, with about a 50% failure rate. I've had at least three iPhone batteries that were defective, and two of them were replaced by Apple. The other one wasn't replaced on an unrelated technicality. I used to buy phones around launch, and those phones seem to have a slightly higher defect rate. Since the iPhone 7, I haven't had a single defective battery. I believe the reliability for these types of batteries has been increasing for years now.

In the five or so iPhones I've owned, I've personally never seen a battery degrade that fast that wasn't defective. So based on my limited, strictly anecdotal experience, I would say yes, contact Apple. Even if they can't (won't) do anything for you now, if your battery gets worse later, the fact that you registered a concern earlier may help you get a better resolution later.

Adam Antoszek-Rallo wrote:

In the five or so iPhones I've owned, I've personally never seen a battery degrade that fast that wasn't defective. So based on my limited, strictly anecdotal experience, I would say yes, contact Apple. Even if they can't (won't) do anything for you now, if your battery gets worse later, the fact that you registered a concern earlier may help you get a better resolution later.

This is a user-to-user forum. It really doesn't constitute registering anything with Apple. If the battery capacity drops to below 80% while it's under warranty, Apple will replace it.

How many defective batteries have you had in five iPhones? In all the phones I've owned in about twenty-five years, including 6 iphones and about the same number of iPods, I haven't had one defective battery.

Your battery health is just fine.

Adam Antoszek-Rallo wrote:

I've been disproportionately unlucky with defective batteries, with about a 50% failure rate.

Yikes. That's seriously unlucky!