Charging not beyond 80
I had purchased new iPhone 12 mini. When I charge it it charged up to 80% only. It’s not charge up to 100%.
Is it defect in new phone or any else!
Let me know. So I can return my phone.
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You have Optimized Battery Charging turned on, read more about it here -
https://support.apple.com/en-us/HT210512