Good question! Yes, red is positive on jumper cables. You’ll want to hook up the cables according to the steps below:
After starting the car with the good battery, let it run for one or two minutes, and then start the car with the dead battery and let it run. It will need to remain running to recharge the battery, so tell your friend to drive it around for at least 30 minutes.
Be sure to reverse the steps above when removing the cables!
The average Jerry user saves $800+ a year on car insurance!