Abstract: A battery jumper cable comprises a first electrically insulated flexible low-voltage conductor having two end portions each electrically connected to a pair of pole pliers and a second electrically insulated flexible low-voltage conductor having two end portions each electrically connected to an insulated pair of pole pliers. To prevent the occurrence of high peak voltages which may affect vehicle electronics during a jumper operation between a powering storage battery of the one vehicle and a discharged storage battery of another vehicle, there is provided at least one electrical connection between the first low-voltage conductor and the second low-voltage conductor. This electrical connection has at least one voltage-dependent resistor exhibiting a forward voltage in excess of the operating voltage of conventional starting batteries for automotive vehicles. The voltage-dependent resistor may be accommodated within a housing.