The road wirelessly charge as your car
b'you\\u2019ve bought a high-end smartphone in the past few months, you\\u2019ll probably be familiar with wireless charging. Just like it sounds, it\\u2019s a simple way of putting charge into your phone without the need for cables \\u2013 and Qualcomm\\u2019s Halo technology is essentially a scaled-up version.\\n\\nIt relies on resonant magnetic induction to transfer energy between a pad on the ground, and another under the floor of a compatible EV. The charging pad is around a metre square, while the car\\u2019s receiving pad is enclosed in a smaller, dinner dish-sized device under the car. Once the two are aligned, charging can take place at 3.3kW, 6.6kW or 20kW speeds.\\n\\nOur guide to electric car batteries and tech\\n\\nDoes it actually work? We tested it to find out'