Most wireless chargers only have 1 charging coil. This means that you have to make sure your phone is aligned with the charging coil to start charging. This is no problem if you just pay attention when placing your phone on a charger. If you want freedom of placement, without paying attention if your phone is aligned with the charger, you should choose a charger with more coils. You will get a bit more freedom of placement with our 5 coils dual charger. If you want ultimate freedom of placement you have to check out our Liberty wireless chargers that pack a whopping 16 coils.
The magic behind wireless charging is electromagnetic induction. Wireless charging technology uses an electromagnetic field and inductive coupling to send energy from point A (transmitter) to B (receiver).
Qi chargers typically use an induction coil to create an alternating electromagnetic field from within a charging base station.