BATTERY MANAGEMENT APPARATUS AND METHOD

A battery management apparatus according to the present disclosure may include a sensing unit detachably mounted to a battery system and configured to measure a voltage of a cell assembly included in a battery pack, which is electrically connected to another battery pack in parallel, when being mounted to the battery system; a balancing circuit having a balancing resistor connected to a charging and discharging path of the cell assembly in parallel and a balancing switch for electrically connecting or disconnecting the cell assembly and the balancing resistor; and a processor operably coupled to the sensing unit and the balancing circuit.