1, whether the production process is advanced 

Advanced process procedures can produce high-quality and high-level charging pile products, so the selection of automobile charging pile manufacturers must understand its specific processing technology, including the raw materials or parts used in the production process and the basis of assembly inspection technology. Good production technology can promote the charging pile in the process of use has a stable performance. 

2. Charging speed of charging pile 

When users use electric vehicles outside, they hope to get a charging speed as fast as lightning. Therefore, the speed of the charging pile when charging is a factor that users are doubly concerned about. It can shorten the time for customers to wait for charging and improve the user's charging experience without delay. Therefore, it is necessary to choose the automobile charging pile manufacturer's products with advanced intelligent technology and safe high electric speed. 

3. After-sales service of charging pile manufacturers 

Choosing charging pile manufacturers should also pay attention to the manufacturer's after-sales service for the equipment. Regular manufacturers will have a certain amount of after-sales engineering for charging pile products, so users should pay attention to understand the after-sales and operation and maintenance provided by manufacturers when choosing charging piles, which can directly relate to the guarantee of users after installation and use and the implementation of professional maintenance measures. 

4, the number of product types of charging pile manufacturers 

Car charging piles can be divided into many different types, so when choosing car charging pile manufacturers, pay attention to the complete variety of manufacturers. For example, according to different installation methods, it can be divided into wall-mounted and column charging piles, and there are public and special types according to different installation locations and use occasions. It can also be divided into a pile of one charge or a pile of multiple charges according to the number of the same interface, as well as integrated charging pile and split charging pile and high-power charging pile.