Battery Management Device Of Battery System To Which Battery Can Be Added, And Control Method Thereof

Abstract: A battery management device according to an embodiment of the present invention, disposed in a battery system to which a fresh battery can be added, may comprise: at least one processor; and a memory which stores at least one instruction to be executed through the at least one processor. The at least one instruction may comprise: an instruction for, if the battery system is switched to a mode for addition of a fresh battery, identifying a target SOC which is defined on the basis of the SOC of an already installed battery and the initial SOC of the fresh battery; an instruction for controlling charging/discharging of the already installed battery such that the already installed battery has the target SOC; and an instruction for, if the already installed battery reaches the target SOC, ending the charging/discharging control in order to add the fresh battery.

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