A dead battery sabotages travel plans. Try jumpstarting a car if another vehicle’s around. Put the hoods approximately 16 inches apart with engines off. Engage automatic transmissions and manual ones in Neutral.
Using jumper cables, clamp one end of the positive (+) red cable to the positive end of the dead battery. Attach the other end of the positive clamp to the good battery's positive. Attach one end of negative (-) black cable clamp to the working battery’s negative terminal.