Abstract: A solid rectangular clamp having a aperture extending laterally therethrough for receiving a battery post and a U-shaped member the legs of which are pivotally mounted within indentations in the sides of said clamp one on each side thereof. A bolt is threadedly mounted to extend through the bight of the U-shaped member and through a further aperture in one end of the clamp until it engages and holds the battery post in the clamp. When withdrawn the bolt releases the battery post and when the U-shaped member is pivotally movable over the aperture which receives the battery post and is turned to penetrate this aperture to engage the battery post, it forces the clamp off of the battery post.