Booster Cable 400A

Jumper cables are used to start a vehicle with a dead battery. The jumper cables are attached to the dead battery and a fully charged battery in another vehicle. Once the vehicle with the dead battery is started, drive the vehicle to charge the dead battery. Cold weather resistant. Great for truck and cars. Works with both top and side post terminals. Insulated Clamps. This jumper cable is suited for all Cars Instructions Determine whether you need jumper cables. If you turn the key and your vehicle makes a click, but won't start, you will indeed need jumper cables.