If your iPhone is dead, you should get to around 30% battery in about 30 minutes of wireless charging. This doesn't mean you can use any Qi wireless charger (the industry standard) for fast charging.

Here's the lowdown on Qi2, the next generation wireless charging that comes with an Apple-inspired magnetic ring.

MagSafe charging is much faster than basic 7.5W magnetic wireless charging. A new Qi2 standard, supported by the iPhone 13/14/15/16 family (and unofficially the iPhone 12) offers similar 15W speed ...