Wireless Charging

How Wireless Charging Works and Why Alignment Matters

Wireless charging can make powering a phone feel almost effortless: place the device on a charging pad or stand, and charging begins without plugging a cable into the phone. The process is wireless only across a very short gap. The charger itself still needs power, and energy must move from a coil inside the charger to another coil inside the phone. That short-distance transfer explains several familiar behaviours, including why placement matters, why thick cases can cause problems, and why wireless charging can produce noticeable heat.