BATTERY AND OPERATION METHOD THEREOF

A battery according to one embodiment disclosed herein may include a first measurement unit configured to measure a first voltage, which is a voltage between a first busbar connecting a first battery cell to a second battery cell and a second busbar connecting a third battery cell to a fourth battery cell, and transmit the first voltage to a management unit, a second measurement unit configured to measure a second voltage, which is a voltage between a third busbar connecting the second battery cell to the third battery cell and a fourth busbar connecting the fourth battery cell to a fifth battery cell, and transmit the second voltage to the management unit, and the management unit configured to calculate a voltage of the third battery cell by mathematically calculating the first voltage and the second voltage.