Wired charging good! The power and voltage of wired charging are stable, because it is safest to connect the DC power supply. It will not harm the battery life of AirPods and will not change the charging power of AirPods.
Wireless charging, because the power will be compressed, it will not only increase the charging time, but also cause damage to the AirPods battery due to voltage instability. For reference only
The charging case of the wired charging version of Apple headphones is the same as that of the first generation, and only supports connecting lightning data cable to charge. The wireless charging version is equipped with a charging box that supports wireless charging, which can be easily charged by simply placing it on the wireless charging board, eliminating the trouble of inserting a cable.