Battery Module

A terminal member is electrically connected to at least one battery cell of a plurality of battery cells. A holder is located at an end portion of a stack and can fix the terminal member by inserting the terminal member into the holder in a first direction. One of the terminal member and the holder is provided with a first protrusion protruding in a second direction orthogonal to the first direction. The other of the terminal member and the holder is provided with a first recess fitted to the first protrusion.