iPhones are designed to function between 32 - 95 degrees Fahrenheit (0 - 35 degrees Celsius). So, when it's below freezing or very hot out, your iPhone may shut off unexpectedly, or send you a warning message that says, "Your iPhone needs to cool down before you can use it."

Why Should I Keep My iPhone At A Cool Temperature?

When you leave your iPhone out in the sun on a hot summer day, it will almost certainly begin to overheat. When your iPhone is exposed to such hot temperatures, the battery may become permanently damaged.

How Do I Keep My iPhone At A Cool Temperature?

Here are some tips for keeping your iPhone cool:

  1. Don't leave your iPhone openly exposed in the sun for long periods of time. Even a little bit of shade can be the difference between fully functioning and overheating!
  2. Don't leave your iPhone in the car on a hot day.
  3. If possible, turn your iPhone off until you can get to a cooler place.

Pro Tips

  • Leaving an iPhone out in extreme cold probably won't damage your battery in the same way as extreme heat would. However, your iPhone may shut off unexpectedly when it gets too cold, which could lead to significant software problems if a file becomes corrupted.

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