Winzella Car Heavy Duty Auto Jumper Cable Booster Wire Clamp 700 ft Battery Jumper Cable  (Pack of 1)

A car jumper cable is a pair of insulated cables used to transfer electrical power from one vehicle's battery to another in order to jump-start a dead or discharged battery. The cables typically feature two alligator clips, one red (positive) and one black (negative), at each end, which are attached to the corresponding terminals of the batteries. The red clip is connected to the positive terminal (+) of the dead battery and the working battery, while the black clip is attached to the negative terminal (-) of the working battery and grounded to a metal surface on the engine block or chassis of the dead car. Jumper cables are designed to handle high-voltage currents, with thick copper or aluminum wire insulation to prevent electrical shock or damage. These cables are essential emergency tools for car owners, allowing them to restart a car without the need for professional assistance.