Recently, the battery of my phone, which I had used for five years, started to fail and showed signs of swelling. Driven by curiosity, I did some research on battery-related information and decided to share it.

How much battery health loss is considered normal after using a phone for a year?Here’s the real answer. Many iPhone users find that their battery health drops to around 90% after a year of use, which makes them start to worry. 'Is there something wrong with my phone?' 'Am I charging it the wrong way?

lf your iPhone often dies halfway through the day, replacing the battery is the most straight forward fix.
But the bigger question is: who should replace it?