Using Your iPhone While It’s Charging
Having to wait to use your iPhone while it’s charging doesn’t sound appealing to anyone, but you know what’s worse? Ruining your iPhone’s battery.
Whenever you charge your iPhone, you need to use it very lightly or even leave it alone as much as possible. When you use it, it’ll start to get warm — or burning hot, depending on the app you’re using.
At first, this might not seem like an issue, but your lithium-ion batteries, like the one in your iPhone, aren’t designed to do well with high temperatures, so using your iPhone like this could damage your battery permanently. Overall, it’s best to leave it alone and unplug it once you need to use it.