The first major update for the Qi2 standard was Qi2.2, which the WPC branded as Qi2 25W.
While it won't do anything to clarify the wireless charging scene, it does enable a host of improvements:
More efficient: Qi2 is more efficient than Qi because the MPP ensures perfect alignment between the coils in your phone or other device and the induction coils in the charging base. Since the two are always in sync, you lose less power from misalignment. Lost energy can convert to heat, which can impact your phone’s battery. The MPP profile results in gains relating to efficiency.
Compatible with more accessories: Since Qi2 chargers are backwards compatible, as mentioned, they will work with both the latest Qi2 devices as well as older model Qi devices. There will also be accessories like cases with magnetic rings, or magnetic rings on their own that can you affix to a third-party case. With these, you’ll be able to charge a phone that doesn’t have magnets on a Qi2 charger and enjoy the benefits of faster charging. It effectively works in much the same way that MagSafe charging cases do. There are already MagSafe charging cases for Android phones as well as Apple.
