So is this battery state of the art? If so in what aspects? Charging speed?
> Mi 10 Ultra is also the first to have mass-produced 50W wireless charging, capable of powering the device to 100% in just 40 minutes1, a speed that is equivalent to 50W wired charging. It additionally supports 10W reverse wireless charging.
I think there is some cooling aspect to it as well
I saw this external battery on Amazon a while back. Apparently it's powered by graphene.
Given that many reviews dispute the accuracy of some of the other product claims, I'm not sure that claim is anything more than BS. The manufacturer's website also doesn't really give the impression otherwise.