Abstract: A connector for a booster cable as usually used in connection with automobiles, having a main plate and a clamping plate pivoted thereon. The plates have cooperating notches receiving a top post of the battery, the clamping plate being drawn up tight, with the edges of the notches gripping the post. The plates of the connector fit under the usual clamp on the cable which forms a part of the permanent electrical circuit of the automobile, and that clamp need not be removed to apply the present cable. The main plate also has additional notches for mounting on the binding posts that are provided on the sides of certain batteries, instead of on the top, the main plate in this case being secured in place by a nut provided on the battery and otherwise utilized for securing cables in the permanent electrical circuit.