How to Jump a Battery With a Portable Jumper
- 1). Ensure that your jumper pack is fully charged and that your car's ignition is turned off.
- 2). Connect the red positive (+) jumper cable to the positive (+) terminal on the car battery.
- 3). Connect the black negative (-) cable to an unpainted metal surface somewhere on the car as a ground. A non-moving piece of the engine block or the frame will work nicely.
- 4). Make sure that the jumper pack and cables are clear of any belts or fans.
- 5). Start the car. If the car does not start after a five-count, turn off the ignition and allow three minutes to pass before attempting again. This is to ensure that no damage occurs to the jumper pack or the car battery.
- 6). Start the car and, while it is running, disconnect the negative (-) cable from where you attached it to the truck and return it to the jumper pack
- 7). Disconnect the red positive (+) cable from the car battery and return it to the battery pack.