Battery module, application method and device thereof, battery equipment and storage medium

The embodiment of the invention discloses a battery module and a using method and device thereof, battery equipment and a storage medium, and the using method of the battery module comprises the following steps: after the battery module is powered on, driving a charging MOS tube in each battery pack to be in a disconnected state, and driving a discharging MOS tube in each battery pack to be in a connected state; obtaining the current voltage of each battery pack, and obtaining the voltage difference between any two battery packs in the battery module according to the current voltage; whether a voltage difference larger than a preset difference value exists or not is judged, and if the voltage difference larger than or equal to the preset difference value exists, the battery pack with the lower current voltage in the two battery packs corresponding to the voltage difference serves as a first target battery pack, and the other battery pack serves as a second target battery pack; and adjusting the conduction sta