WIRELESS BATTERY MANAGEMENT SYSTEM AND AN OPERATING METHOD THEREOF

A wireless battery management system includes a plurality of cell monitoring units (CMUs) configured to monitor a plurality of battery cells, and a battery management unit (BMU) configured to perform wireless communication with the plurality of CMUs and manage the plurality CMUs. The BMU requests transmission of cell monitoring information from the plurality of CMUs, and based on a failure of the transmission from any CMU, preferentially requests retransmission of the cell monitoring information from the CMU from which transmission has failed.