Chinese EV giant, BYD, has unveiled new fast chargers that can add almost 250 miles of range to an electric vehicle in five minutes.BYD's new 1,000 KW superchargers are four times as powerful as Tesla's current 250 KW chargers.Lengthy charging times and range anxiety are some of the main reasons consumers are reluctant to buy EVs. BYD aims to solve this problem.BYD has positioned itself as a major competitor to Tesla, impacting Tesla's market share and sales in China.