Abstract: A three-conductor booster cable assembly is disclosed for connection of a source of DC power to the terminals of a battery requiring recharging. The uniqueness of this assembly is based upon a combination of features including (a) modification of the terminal clamps on the cable ends to insure that the opposing jaws of each clamp are and remain open when not in contact with the positive terminals of either the battery or power source, (b) the provision of two separate conductors for connection of the positive terminal clamps to the positive terminal of the power source to the positive terminal of the battery to be recharged and (c) control circuitry specific for a three-conductor booster cable assembly. Because of these and other features, the control circuit logic is now capable of preventing arcing of the positive terminal clamps should they become inadvertently disconnected from the terminals once the transfer of power from the power source to the battery has been initiated.