Why do you have to limit the iPhone battery capacity to 80%? This is very important.
There is no doubt that iPhone users are obsessed with battery life, and you rarely find anyone sacrificing a fifth of the battery capacity, which is 20%, and limiting charging to only 80% “as Apple always recommends.” One person did some tests on his iPhone 15 Pro Max, set the charging limit to 80%, used the iPhone in a normal and intense way, and came up with some results.