If you want to increase the number of batteries, this increases the weight of the vehicle. For example, the Kang Yang electric vehicle, which is already commercially available, weighs 95 kilograms, of which batteries constitute 43 kilos. In the minibus produced by P.P.P., batteries account for more than 2,000 kg of its total weight of 6,000-plus kg. So the burden is quite heavy.
若要增加電瓶數量，又將加重車輛負擔，像現在已上市的康陽電動車，總重量九十五公斤，電池就佔了四十三公斤；而新旅程公司的電動中型巴士重六千多公斤，電池也佔了兩千多公斤，負擔十分沉重。