摘要 |
A vehicle emergency rescue device includes a control unit, a charging and discharging circuit, a battery set, an output voltage converter, a computing unit, a connection terminal and a display device. Subject to the functioning of the inner computing unit and the outer display device, the user can know the car battery capacity and status, the charging time required and the time remaining for full battery charge during the operation of the vehicle emergency rescue device to charge the car battery of the vehicle. |