Charge Your iPhone At the Right Temperature
One of the things you need to be aware of is the room temperature. If the day is too hot for you, it’s also too hot to charge your iPhone.
Apple suggests that you charge your iPhone where the ambient temperature is between 0º and 35º C (32º to 95º F). Charging in low or high-temperature conditions can damage your iPhone’s battery and other internal components.
Generally speaking, if you charge your iPhone when it’s too cold, your iPhone will just stop charging until it reaches a decent temperature again.
On the other hand, if you charge your iPhone while it’s too hot, not only will it stop charging, but it might even damage your battery in the long run. Needless to say, you’ll want to avoid either of these conditions when charging your iPhone.
Also, keep in mind that charging generates extra heat, so your iPhone will always get even hotter than the room you’re in, and that’s especially true for wireless charging. If you have to contend with a warm environment, it may be worth considering a wireless charger that can help keep your iPhone cool while it charges.