Wireless charging works by transferring energy from the
charger to a
receiver in the back of the phone via electromagnetic induction. The
charger uses an induction coil to create an alternating electromagnetic field, which the
receiver coil in the phone converts back into electricity to be fed into the battery.
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It's perfectly safe to be in close proximity to a wireless charger, so you can continue to charge your phone on your nightstand overnight, or on your desk all day at work. ... When your smartphone makes physical contact with the charging base, the signal focuses on the receiver coil in your phone and charging begins.
