A bus bar for electrically connecting adjacent battery cells of a battery module includes a base having a first leg and a second leg connected by a flexible joint. The flexible joint is folded-over such that the first leg is above the second leg. A first terminal tab extends from the first leg. The first terminal tab is configured to be terminated to a corresponding battery terminal of a first of the battery cells. A second terminal tab extends from the second leg. The second terminal tab is configured to be terminated to a corresponding battery terminal of a second of the battery cells. The first and second terminal tabs are arranged side-by-side with the first terminal tab being vertically positionable independent of the second terminal tab by the flexible joint.