Recently, the temperature has dropped, and mobile phone batteries are becoming less and less durable, which is actually a common problem of lithium batteries.
I looked at the iPhone 13 I bought last year, and the battery was 92% healthy. How much is left in yours?
Apple's equipment has low temperature protection. When the temperature is too low, it cannot be charged. I usually put it under the bed.
At present, Apple 13 is still very smooth to use, but now it is recommended to buy iPhone 14. Its processor has been upgraded. Although they are all A 15 processors, they use 6G memory version, so they can open more applications with high fluency.