... needs, you can use any packaging situation. ^ Use to jump dead batteries in cars, boats, snowmobiles, ATVs, and more.^ Essential safety and ... cable design is suitable for both 12/24 volt systems.How to Start a Car With Jumper Cables Instructions: 1 Determine that ... car again.11 Once the car starts, disconnect the cables in reverse order of attachment: negative, negative, positive, positive.12 Keep ...