When you plug your phone into a charger, it starts to get warm because energy is moving from the wall outlet to your phone. This movement of energy is like when you rub your hands together, it creates heat. Your battery is working hard to store all that energy, and that makes it feel warm in your hand.
Examples
- Batterys get warmer when they charge faster, like with fast-charging tech.
- If you use your phone while charging, it can feel even hotter.
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