There are two kinds of 4g vehicle gps tracker on the market, one is with battery, and the other is wired. The connected 4g vehicle gps tracker needs to use the power supply of the car, as long as the car starts, the 4g vehicle gps tracker will work, and can achieve 24-hour real-time positioning. There is also a kind of own battery, due to high power consumption, there are now long standby...