Charging device with an engine starting interface, charging device with a charging input interface and charging method

A charging device with an engine starting interface, comprising:

• a charging device body and the engine starting interface provided on the charging device body, wherein the charging device body comprises:
• a power supply, a control unit, and at least one electromagnetic coil;
• the control unit is respectively connected to the power supply and the at least one electromagnetic coil;
• and
• the control unit is configured to control the at least one electromagnetic coil to generate a varying magnetic field when the amount of power of the power supply is greater than or equal to a pre-set amount of power and the charging device is wirelessly connected to a device to be charged, so that an internal coil of the device to be charged generates a varying current to cause the charging device to wirelessly charge the device to be charged,
• wherein the charging device body further comprises:
• a switching circuit, the switching circuit is connected to the control unit.