The Alignment Problem

Wireless charging loses efficiency fast when the coils aren't lined up. The magnetic field falls off sharply with distance, so even a small gap or offset cuts the energy that reaches your phone.

• Most chargers have a sweet spot you need to hit
• Some use overlapping coils for wider coverage
• Apple's MagSafe uses magnets to snap into alignment
• Thick cases slow charging by widening the coil gap

Wireless charging isn't truly wireless — it's contactless, and that small gap still matters enormously.