If someone puts two phones on a wireless charger, where does the energy to charge the second phone come from?

Question

I understand that the current in the wireless charger causes a current to be induced in the first phone via magnetic fields. However, if I place a second phone on the wireless charger at the same time, what happens? Does the second phone steal some of the energy that would have gone to the first phone? Does it cause the wireless charger to somehow pull in more power from the outlet? Would the first phone now charge at a slower rate compared to before? Or does it merely productively use some of the energy that would have been lost due to heat or something else?

In: 1

Answer 1

So a thing about wireless chargers is the the the charger and device have to closely lined up with each to work so you won’t have two phones drawing energy from the magnetic fields created by the same coils.

All multi device wireless chargers currently have multiple coils, one for each device. And the power delivered will behave just like if you plugged two phones into a multiport wired charged.

The power is split between the two phones with the total power not exceeding the chargers rating.