1993 Buick Century Owner's Manual - Page 190

7. Don't let the other end touch metal. Connect it to the positive (+) terminal of the good battery. Use a remote positive (+) terminal if the vehicle has one. 9. Attach the cable at least 18 inches (45 cm) away from the dead battery, but not near engine parts that move. The electrical connection just as good there, but is the chanceof sparks getting back to the battery is much less. 8. Now connect the black negative (-) cable to the good battery's negative (-) terminal. Don't let the other end touch anything untilthe next step. The other endof the negative cabledoesn't go to the dead battery. It goes to a heavy unpainted metal part on the engineof the vehicle with the dead battery. 3. ' 10. Now start the vehicle with the good battery and run the engine for a while. U. Try to start the vehicle with the dead battery. If it won't start after afew tries, it probably needs service.