BATTERY PACK AND DATA TRANSMISSION METHOD BETWEEN THE BATTERY PACK AND ELECTRICAL DEVICE

A battery pack includes a housing, a battery cell group accommodated in the housing, a plurality of battery pack connection terminals coupled to the connection terminals of an electrical device, including a battery pack positive power terminal electrically connected to a negative pole of the battery cell group, a battery pack negative power terminal electrically connected to a positive pole of the battery cell group, a first battery pack terminal to transmit a first type of data, and a second battery pack terminal to transmit a second type of data. Also, a data transmission method between the battery pack and the electrical device enables data collection for data analysis while ensuring normal operation of the battery pack and the electrical device.