Attribute determines the usage scenario
There is no absolute mode of charging and switching. It is generally accepted that different usage scenarios need to be selected according to different attributes.

“Switching to electricity is a very good way, especially in the field of operating vehicles such as taxis and network buses. The power-exchange mode is more suitable for promotion.” Fang Jianhua, Partner and President of the New Energy Vehicle Venture Capital Fund of the National Science and Technology Achievements Transformation Fund Tell the reporter of China Auto News.

First of all, for operating vehicles, time is money. Existing electric taxis generally need to be recharged in the middle to meet the mileage requirements of the whole day. If the charging mode is used, it takes about one hour, which means that part of the effective working hours of the drivers is wasted. In addition, in the past, electric taxi drivers worried that the electric car would be powered down too quickly during the cold season, even if it was not allowed to turn on the air conditioner in winter. The power-changing mode can make up for the above defects, not only can relieve the driver's mileage anxiety, but also improve their working environment.

Secondly, from the perspective of the power system, China's power supply has obvious peaks and valleys. In the evening, a large number of power resources cannot be used efficiently, and the power-exchange mode just plays a role of peak-cutting and valley-filling.

Third, centralized management of the replaced battery is also beneficial to extend battery life and increase its life cycle value. Relatively speaking, slow charging can extend the life of the battery more than fast charging. The replaced battery can use slow charging at night, which can save a lot of cost for the user.

In addition, in the power-change mode, the battery can be centrally managed, which makes it easier to record the battery usage in detail, and it is easier to concentrate on the recovery of the battery.

Wang Rong said that based on so many years of observation, it is not very meaningful to simply discuss the charging and changing modes. It is necessary to look at this problem from the perspective of attributes. If the electric vehicle has the tool property, the power exchange mode can be adopted. If it is a private purchase, the property attribute is displayed, which is not suitable for the power exchange mode, and the charging mode is more favorable to the electric vehicle of the property attribute. "In addition to the taxi, the network can be used to change the power mode, the electric car that the courier brother often uses is more suitable for the power exchange mode. You can start from the electric switch mode of the express electric car, and after accumulating experience, promote it to the taxi. Net car, so the impact on the market and industry is relatively small." Wang Rong said.

From the perspective of attributes, Zhong Chongchang, the general manager of the Special Call Center, put forward different views. He believes that electric vehicles have strong electrical properties and are depreciated quickly. They cannot simply look at the charging and switching modes from the perspective of the car.