BATTERY PACK

A battery pack according to an aspect of the present invention may include first and second cell modules each including a plurality of battery cells. The plurality of battery cells may be configured to include a first electrode terminal and a second electrode terminal, a case in which the plurality of battery cells is accommodated, a first connection tab connected to the first electrode terminal and exposed to a first end side of the case, and a second connection tab connected to the second electrode terminal and extending outside a second end side of the case, which is opposite to the first end side. The battery pack may further include a circuit board part electrically connecting the first cell module and the second cell module in a state where the first cell module and the second cell module are sequentially arranged.