How Wireless Charging Works On The BMW i8

How does wireless charging work? How does the BMW i8 Formula E pace car wirelessly charge? Wireless charging works by taking advantage of the fact that if you put a current through a wire coil, then that coil will create a magnetic field. If you then place another coil set directly over that coil, the magnetic field created by the first coil will induce a current in the second coil. Typically this will be done with an alternating current, so the magnetic field of the first coil will switch back and forth, inducing an alternating current in the second coil. With no physical connection, you’re able to supply a current to charge a device.

Big thanks to Formula E for having me out to the event and sponsoring this video, and thanks to my network partner GarageMonkey for helping arrange this opportunity!