9.
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.
10.
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.
11.
Now start the vehicle with the good battery and run
the engine for a while.
12.
Try
to
start
the vehicle with the dead battery.
If
it
won’t
start
after a few tries, it probably needs service.
5-7