Battery Usage Support Articles
About the battery usage on your iPhone and iPad (and iPod touch) ... —> Check battery usage on your iPhone - Apple Support
Batteries - Maximising Performance —> Batteries - Maximizing Performance - Apple
iPhone Battery and Performance —> iPhone battery and performance - Apple Support
The last update killed my battery!
How did the last update kill my battery? - Apple Community
From: How long does indexing on a new iPhone ta… - Apple Community
- Home and Lock Screen generally indicate your iPhone is still indexing, syncing, backing up to iCloud, and doing AI setup if a device supports it and it is activated.
- Indexing taking several days but depends upon amount.
Check your iPhone battery for Self-Discharge
How to check your iPhone battery for Self… - Apple Community
-Outlines a way to check if a battery may be bad and is resulting in excessive charge loss overnight when not in use.
If you truly think that something is wrong with it, get Apple to have a look at it while it is still inside the return period.
Go to this page to find your nearest Apple Authorized Service Provider (AASP) or Apple Authorized Distributor (AAD) --> https://locate.apple.com/country
How to make a Genius Bar appointment
1. Go to Genius Bar Reservation and Apple Support Options - Apple
2. Go to "Get hardware help".
3. Select your hardware and continue selecting options requiring replacing parts until you see "Bring in for Repair"
4. Sign in with your Apple ID
or:
Refer to this document for ways to contact Apple ➞ Choose your country or region - Official Apple Support
Select your country (also look for "other" regions), then a product. If you don't see one that handles your issue then keep experimenting with selections until you reach one that gets you a chat session or a telephone call and get the representative to redirect you.
or:
Contact Apple for support and service by telephone ➞ Contact Apple Support - Apple Support