The first mass-produced 900V drive system rolled off the production line Wednesday. Chinese EV maker NIO’s (NIO) “Thunder” 900V electric drive system (EDS) can add over 150 miles (255 km) with five-minute fast charge. First mass-produced 900V EV drive system rolls out NIO announced the milestone Wednesday after building its one-millionth EDS. NIO’s Porsche-rivaling ET9 premium EV will be the first to feature the new tech. The ET9 was unveiled in December aimed at “the new generation of high-end business users.” NIO packed the luxury EV with its latest tech for a “perfect package of flagship-style exterior, spacious interior, immersive experience, efficient recharging.” This includes the world’s first mass-produced 900V EV drive system with up to 925V, 600 kW peak power, and 765A peak charging. NIO claims the electric motors in the front and rear are smaller and 30% lighter to improve efficiency. Meanwhile, the smaller units provide more interior space. The ET9 will be the first to use a 925V W-Pin synchronous permanent magnet electric motor (340 kW peak power). At just 174 lbs …