Why Do Phones Get Hot When Charging?

Phones get hot when charging because they are working hard. Think of your phone like a runner who just finished a race, it’s tired and needs to recover. When you plug in your phone, energy is moving from the charger into the battery, like giving the runner water to help them rest. Sometimes this process can feel a little too fast for the phone, making it hot, but it's not harmful most of the time.

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Examples

  1. Your phone feels like a warm brick after charging it all night.
  2. You notice your phone getting hot when you're watching videos while it charges.
  3. Your phone warms up even faster if you charge it using a fast charger.

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