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Hi, just got an iPhone 14, is it normal for it to get warm while charging?

Hi, just got an iPhone 14, is it normal for it to get warm while charging?

iPhone 14, 16

Posted on Apr 10, 2023 9:05 AM

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Posted on Apr 10, 2023 9:07 AM

Yes. It’s called the Second Law of Thermodynamics. Anything that creates or uses energy does so with some loss. That lost energy is expressed as heat. So when you charge the phone it generates heat in the power source, heat in the charger circuit in the phone, and heat as the energy goes into the battery. The faster the charging, the more heat is generated. Likewise when you discharge the battery; not all of the energy from the battery gets to the circuits that use it. Some of it becomes heat. 

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Apr 10, 2023 9:07 AM in response to dorita56

Yes. It’s called the Second Law of Thermodynamics. Anything that creates or uses energy does so with some loss. That lost energy is expressed as heat. So when you charge the phone it generates heat in the power source, heat in the charger circuit in the phone, and heat as the energy goes into the battery. The faster the charging, the more heat is generated. Likewise when you discharge the battery; not all of the energy from the battery gets to the circuits that use it. Some of it becomes heat. 

Hi, just got an iPhone 14, is it normal for it to get warm while charging?

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