How do I fix my iPhone 16 Pro Max from overheating when charging?

Hello!

Yes, it is normal for the iPhone to heat up during fast charging. There a fancy name for it but since I’m not Lawrence Finch I don’t know what it is. That’s why it didn’t heat up when you used your laptop. Because it wasn’t fast charging. iPhones only fast charging on a 20 watt power source.

If you don’t see a message talking about your iPhone overheating, then it’s fine. Or even if you see a message saying something like “iPhone will continue charging when device returns to a normal temperature” that’s normal too, when fast charging.

Have a great day, and let us know if you have more questions. There’s a lot of smart guys here when it comes it charging and batteries, so ask away.

H1290 wrote:

Hello!

Yes, it is normal for the iPhone to heat up during fast charging. There a fancy name for it but since I’m not Lawrence Finch I don’t know what it is. That’s why it didn’t heat up when you used your laptop. Because it wasn’t fast charging. iPhones only fast charging on a 20 watt power source.

If you don’t see a message talking about your iPhone overheating, then it’s fine. Or even if you see a message saying something like “iPhone will continue charging when device returns to a normal temperature” that’s normal too, when fast charging.

Have a great day, and let us know if you have more questions. There’s a lot of smart guys here when it comes it charging and batteries, so ask away.

Hi H1290, I recall the word Lawrence Finch used was “The Second Law of Thermodynamics.” Which basically means anything that uses energy must exert some. Your iPhone gets warm while charging because not all the energy goes into the battery, some of it turns into heat and exerts itself.

Hello~ Here’s a thread where Mr. Finch explains …

Why my new device is always getting hot w… - Apple Community

Remember…there are lots of smart women here as well. Take care.

~Katana-San~

Your iPhone is supposed to exert heat when charging, in fact anything that uses energy is designed to. This is absolutely normal and your iPhone is not considered overheating. If your iPhone really were overheating, it would display a Temperature Warning or Charging On Hold message, which would prevent you from using the iPhone until it cools down. So if you don’t see that, you can continue to charge normally.

Katana-San wrote:

Hello~ Here’s a thread where Mr. Finch explains …

Why my new device is always getting hot w… - Apple Community

Remember…there are lots of smart women here as well. Take care.

~Katana-San~

Of course! How could I forget. There are indeed many smart women here. Thanks Katana! 😊

Hello once more~ You are welcome and keep up the good work.

~Katana-San~

Zachyy wrote:

H1290 wrote:

Hello!

Yes, it is normal for the iPhone to heat up during fast charging. There a fancy name for it but since I’m not Lawrence Finch I don’t know what it is. That’s why it didn’t heat up when you used your laptop. Because it wasn’t fast charging. iPhones only fast charging on a 20 watt power source.

If you don’t see a message talking about your iPhone overheating, then it’s fine. Or even if you see a message saying something like “iPhone will continue charging when device returns to a normal temperature” that’s normal too, when fast charging.

Have a great day, and let us know if you have more questions. There’s a lot of smart guys here when it comes it charging and batteries, so ask away.

Hi H1290, I recall the word Lawrence Finch used was “The Second Law of Thermodynamics.” Which basically means anything that uses energy must exert some. Your iPhone gets warm while charging because not all the energy goes into the battery, some of it turns into heat and exerts itself.

That’s it! Thank you Zachy.