How to Jump Start a Dead Battery?
1 Answers
Connect one end of the red jumper cable to the positive terminal of the dead battery, and the other end to the positive terminal of the rescue vehicle's battery. Then connect the black jumper cable to the negative terminal of the rescue vehicle's battery, and the other end to the engine block itself or a metal component on the engine block of the disabled vehicle. Identify the positive and negative terminals of the dead battery. Both batteries should have a voltage of 12 volts, and the capacity of the booster battery should be essentially the same as that of the dead battery.