周二，国内电动车制造商蔚来的第三代换电站开始试运营，新的换电站可以在5分钟内完成换电，而每次的服务费也更便宜。请看本报昨日的报道：

Domestic electric vehicle (EV) maker Nio Inc. began trial operation Tuesday of faster, more efficient battery swapping stations in China in its push to make battery swapping a viable alternative to rival EV makers’ rapid-charging technology.

With capacity to store up to 21 battery packs each, Nio’s Power Swap Station 3.0 can speed up battery swapping to less than five minutes and lower the service cost per swap, Shen Fei, Nio senior vice president for power management, told reporters at an event in Shanghai last Thursday.

报道中的battery swapping station就是“换电站”，和特斯拉的快速充电不同，蔚来采用的是为用户快速更换电池的服务，在换电站替用户换上充满的电池。