A battery management device comprising: a hardware version identification unit including hardware version information of a battery management system and configured to output the hardware version information; and a microcontroller including a plurality of input/output channels, and configured to receive the hardware version information of the hardware version identification unit through at least one input/output channel, wherein the microcontroller: receives update software including a compatible hardware version list, and compares the compatible hardware version list with the hardware version information of the battery management system received from the hardware version identification unit to determine whether to proceed with software update of the battery management system, wherein at least one input/output channel of the microcontroller is set as a designated channel, wherein the designated channel is simultaneously connected to a first switch having one end connected to a predetermined application execution unit and a second switch having one end connected to the hardware version identification unit, wherein each of the first switch and the second switch has an on/off state set differently according to a control of the microcontroller; wherein, when there is a software update instruction, the microcontroller turns on the second switch and turns off the first switch to receive the hardware version information input from the hardware version identification unit through the designated channel; and wherein the microcontroller is configured such that, if the hardware version information received through the designated channel does not exist in the hardware version list, the software update is not performed and the second switch is turned off and the first switch is turned on. a hardware version identification unit including hardware version information of a battery management system and configured to output the hardware version information; and a microcontroller including a plurality of input/output channels, and configured to receive the hardware version information of the hardware version identification unit through at least one input/output channel, wherein the microcontroller: receives update software including a compatible hardware version list, and compares the compatible hardware version list with the hardware version information of the battery management system received from the hardware version identification unit to determine whether to proceed with software update of the battery management system, wherein at least one input/output channel of the microcontroller is set as a designated channel, wherein the designated channel is simultaneously connected to a first switch having one end connected to a predetermined application execution unit and a second switch having one end connected to the hardware version identification unit, wherein each of the first switch and the second switch has an on/off state set differently according to a control of the microcontroller; wherein, when there is a software update instruction, the microcontroller turns on the second switch and turns off the first switch to receive the hardware version information input from the hardware version identification unit through the designated channel; and wherein the microcontroller is configured such that, if the hardware version information received through the designated channel does not exist in the hardware version list, the software update is not performed and the second switch is turned off and the first switch is turned on. receives update software including a compatible hardware version list, and compares the compatible hardware version list with the hardware version information of the battery management system received from the hardware version identification unit to determine whether to proceed with software update of the battery management system, wherein at least one input/output channel of the microcontroller is set as a designated channel, wherein the designated channel is simultaneously connected to a first switch having one end connected to a predetermined application execution unit and a second switch having one end connected to the hardware version identification unit, wherein each of the first switch and the second switch has an on/off state set differently according to a control of the microcontroller; wherein, when there is a software update instruction, the microcontroller turns on the second switch and turns off the first switch to receive the hardware version information input from the hardware version identification unit through the designated channel; and wherein the microcontroller is configured such that, if the hardware version information received through the designated channel does not exist in the hardware version list, the software update is not performed and the second switch is turned off and the first switch is turned on.