Chinese phone maker Xiaomi gave us our first look at its 100W Super Charge Turbo fast charging technology last March, showing how it juiced up a 4,000 mAh battery from flat to 100% in 17 minutes. We are yet to see a smartphone from Xiaomi that supports this tech, and it appears there's still a lot of waiting to be done. Xiaomi VP Lu Weibing took to Weibo to detail the challenges with the super fast charging. Weibing says there are primarily five technical difficulties that need to be considered. They are: Battery Capacity Loss: Batteries don't like heat, which is the reason...