Comment Qi 2 Power (Score 1) 37
The statement in the article that said previous Qi chargers can only charge at up to 7.5W is incorrect. Qi 1.2.x and Qi 1.3 chargers may all charge at up to 15W (although there are cheap ones that are more limited). The phone is usually the limiting factor. Many phones didn't charge much beyond 7.5W, that is true But some did well before Qi 2 came out.
Also the complaints I read in the comments about efficiency are not well understood. Because of Qi 2's better magnetic coupling, the phone & charger system can achieve up to 83-85% efficiency in general. That's about 10% better than Qi 1.x, and this level of efficiency is very close to the maximum that a typical USB Type-C PD power supply can achieve.
Hopefully the major Android manufacturers will adopt Qi 2 quickly so we can all benefit from the new standard.