As Lee demonstrates, if even only 1 % of the 70 million cars bought annually around the world were EVs (i.e. 700,000), and each car (assuming small cars only) used only batteries consuming 20 kilowatt-hours of electricity at full charge, the total battery usage would be roughly equal to all the cellphones and notebook computers in the world.
李俊忠表示，目前全世界一年銷售 7,000 萬輛汽車，假設其中 1 % 是電動車（70 萬輛）、每輛車又以最小的車電量 20 度來計，電池用量就幾乎等同於現在全世界所有手機和筆電使用量的總和。