How do you jump start Porsche boxster s?

To jump-start a Porsche Boxster S, first ensure both vehicles are turned off. Connect the positive (red) jumper cable to the positive terminal of the dead battery and then to the positive terminal of the working battery. Next, connect the negative (black) jumper cable to the negative terminal of the working battery and attach the other end to a metal ground point on the Boxster, away from the battery. Start the working vehicle, let it run for a few minutes, then attempt to start the Boxster.