iPhone 8 Plus battery percentage problem.
iPhone 8 Plus doesn’t change more than 80% battery.battry health is 91% and show peak performance is normal.in dfu mode restore new iOS but still same don’t change more then 80%.
iPhone 8 Plus, 12
Hello,
If your device stopped charging at 80 percent
Your iPhone might get slightly warmer while it charges. To extend the lifespan of your battery, if the battery gets too warm, software might limit charging above 80 percent. Your iPhone will charge again when the temperature drops. Try moving your iPhone and charger to a cooler location.
Here's more info:
If your iPhone, iPad, or iPod touch won't charge - Apple Support