There is now a battery health section in settings where you can see your battery's degradation. My iPhoneX, about a year and a half old, is at 90% of maximum capacity. It’s still 100% capable of peak performance.
At 80% I’ll probably get a new battery if I still have the phone. Once a day, night time charge most of the time. If I’m in an area with spotty cell coverage, or shooting a lot of photos and editing them, or shooting video...I’ll need to charge before the day is over.
On those days, I take an external battery with me. Just like Imhave a case on it such that my iPhone isn’t particularly thin either. I’d love to enjoy my iPhones actual thinness...but I don’t want to pay for repairs.
If my iPhone was as thick as it is with my case in it, I’d make it thicker still by putting a case on it. It’s the screen that’s fragile
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