How Does Wireless Charging Actually Move Power?

Imagine two dance partners holding hands. When one spins around, the other has to spin too. Wireless charging works on a similar principle using magnetic fields. Inside your charging pad and inside your phone are special coils of wire that don't touch but talk to each other through invisible energy waves.

Your charger sends electricity into its coil. This creates an invisible magnetic wave that floats up to your phone. Your phone catches this wave and turns it back into electricity to fill your battery. It is like a bridge made of air.

Sometimes the energy bounces around or gets lost, which makes heat. That is why pads feel warm. Scientists are working on better coils so less energy is wasted as heat.