Chevrolet 1994 Astro Passenger Owner's Manual page 190

Good Battery
(-)
B
b
Heavy Metal Engine Part
9.
10.
11.
12.
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.
Now start the vehicle with the good bat 'y and run the engine for a
while.
Try to start the vehicle with the dead battery. If it won't start after a few
tries, it probably needs service.
Remove the cables in reverse order to prevent electrical shorting. Take
care that they don't touch each other or any other metal.
Remove Cables In This Order:
2
n
5-6
1. Heavy Metal
Engine Part
2. Good Battery
(-)
3. Good Battery
(+)
4. Dead Battery
(+)