Car tbox is the abbreviation of Telematics BOX. The battery it uses is a wide-temperature nickel-hydrogen battery. It is also one of the four parts of the car networking system, including the host, car tbox, mobile phone APP and background system. After the power is cut off, it can independently upload 10 minutes of data. At present, some car companies in China have been forced to carry tbox, and fuel vehicles may also be forced to carry tbox in the future. Since car tbox batteries are being used more and more, which domestic manufacturers can produce car tbox batteries?