Battery Control Apparatus and Method Thereof

A battery control apparatus and a method thereof are provided. The battery control apparatus includes an interface that transmits at least one signal to battery system assembly (BSA), a memory, and a processor. The processor transmits an interlock signal indicating a state in which the BSA is mounted on a vehicle to the BSA via the interface, in a virtual environment corresponding to a real environment in which the BSA is mounted on the vehicle, transmits at least one of a starting signal indicating that the vehicle is ignition on or a vehicle signal associated with driving of the vehicle, or any combination thereof to the BSA, and diagnoses a state of the BSA, in a state in which power relay assembly (PRA) included in the BSA is activated in response to the at least one.