Control method and device of power supply circuit, power supply circuit, vehicle and storage medium

The invention relates to a control method and device of a power supply circuit, the power supply circuit, a vehicle and a storage medium, the power supply circuit comprises a first battery pack, a second battery pack, a first switch group, a second switch group and a target direct current converter, and the method comprises the following steps: acquiring a first voltage of the first battery pack and a second voltage of the second battery pack; determining that the first voltage and the second voltage meet a preset condition, and controlling the on-off state of the first switch group and/or the second switch group; and controlling the target direct-current converter to take power from the first battery pack and/or the second battery pack in the on-off state, wherein the target direct-current converter is used for supplying power when the vehicle is in a dormant state. By controlling the first switch group and the second switch group, equalization of the battery pack can be simply and flexibly realized. 本公开涉及一种