A battery module includes a housing having a wall. The wall includes an opening extending from an inner surface of the wall facing an interior of the housing to an outer surface of the wall opposite to the inner surface. The battery module also includes a connector barrel having a first open end, a second open end, and a body portion extending between the first and second open ends. The body portion is positioned within the opening of the wall, the first open end is positioned within the interior of the housing, and the second open end is positioned external to the housing. A ridge on the body portion is disposed proximate to the outer surface of the wall, and a first circumferential bump on the body portion is disposed proximate to the inner surface of the wall. The battery module also includes a securement component disposed within a space defined by the first circumferential bump of the connector barrel. The wall is sandwiched between the ridge of the connector barrel and the securement component.