This case, please FUCHW technology to tell you.

 

A: Not necessarily all the cars are required to install the line group, if the original car's power cord is thick enough, you do not need to install the line group; otherwise you need to install the line group, double-back circuit of the line group and the double safety device to protect the car's electrical circuit, anti-corrosion of the connection terminals to prevent the occurrence of poor contact, the current capacity of the connection wires to ensure wires are not blown, so that the customer ease of use.