Abstract: A car battery terminal clamp comprises two clamping jaws which are closed on one end and can be squeezed together at opposite free ends to provide a clamping effect at a clamping receiver between the closed end and the free ends. The clamping movement is produced by a tensioning device which produces a tensioning force acting perpendicular to the plane of the clamping movement. Sloping surfaces and corresponding counter-surfaces of the free ends and/or tensioning device interact in a sliding manner, to convert the tensioning force into a clamping force perpendicular thereto. The sloping surfaces are designed in such a way that the slope angle is smaller in a region farther away from the closed end than in a region which is nearer thereto. The sloping surfaces and counter-surfaces thus maintain maximum contact in all positions during the entire clamping movement, which minimizes point-type contact pressure loading.