sadhvisingh Said:
"Battery issue and heating problem: I have been using iphone 12 for about 9 months now and the battery health is 94% and in the past 1 month my battery health has drowned from 97 to 94 ?"
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About a Degrading Battery:
As for the degrading percentage, unfortunately there is no way to know why, nor when that occurred.
Troubleshooting an Overheating iPhone:
Try the following:
I. Cool Down the iPhone:
For a few hours, perform the following...
- Power Off: the iPhone for a bit
- Unplug: any Cables
- Place it Atop: a Laptop Cooler
- Keep it in: an open space
- Keep it Out of: direct sunlight
II. Clear Space:
Having little empty space can heat things up. So, here is what to perform...
A. Clear Temporary Internet Files:
Clear your Temporary Internet Files(Cookies & Cache) of Safari:
Also...
B. Clean TV and Music Libraries:
Remove all unneeded files from your TV and Music Libraries. Full-Movies take up 2-4GB typically, and a bunch of those would take up a load of storage, ideally. So, if you have any movies that are not needed, then delete them.
Also...
C. Clear "Other":
- Clear the storages named "Other". It basically contains unnecessary files such as caches that are used for system ease of use - all of which gather over time: How to Clear "Other" in your iPhone's Storage - Use Backup - User Tips. Caches would be being used for remembrance of application use.