Chevrolet 1995 S-10 Pickup Owner's Manual page 188

Dead Battery (+) Good Battery (+)
7. Don't let the other end touch metal. Connect it to the positive
(+)
8. Now connect the black negative
(-)
cable to the good battery's negative
(-)
terminal.
Don't let the other end touch anything until the next step. The other end
of the negative cable doesn't go to the dead battery. It goes to a heavy
unpainted metal part on the engine of the vehicle with the dead battery.
Good Battery (-) Heavy Metal Engine Part
terminal of the good battery.
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 is just as
good there, but the chance of sparks getting back to the battery is much
less.
5-5