A battery including a plurality of cells housed in a battery container, wherein the battery container is formed of an insulating material and includes a plurality of housing portions formed by an inner wall portion of the battery container, each of the housing portions housing an associated one of the cells, and a conductive member for use in connecting the plurality of cells is embedded in a wall portion of the battery container. The housing portion has a shape conforming to an outer face of the cell and is in contact with the outer face of the cell.