Skip Navigation

What are Jumper Cables?

Jumper cables are a pair of thick insulated cables with alligator clips on each end to charge a dead or dormant car battery. Jumper cables transfer power from the active source and provide it to the uncharged battery. Most cables typically have alligator clips made of copper material and insulated red and black handles. When using jumper cables to jumpstart a car, it's important to remember the red clips attach to the positive battery terminals while the black ones connect to the negative terminals.

Jumper cable storage

  • Store jumper cables in a closed space like your trunk to prevent corrosion on the clips
  • Put them in a thick bag to avoid the cables from getting scratched by cargo in your trunk
  • Avoid storing jumper cables in garages, sheds or other spots where moisture can seep in