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1. First connect the positive terminals of the two
batteries (see illustration, Items 1 + 2). Start with the
booster battery.
2. Then connect the negative terminal of the vehicle
with the booster battery to a vehicle ground point
of the vehicle with the discharged battery, such as
to the engine block (see illustration, Items 3 + 4).
Start with the booster battery.
3. Start the engine in the customary manner.
4. Allow the engine to run for a short time.
5. Before disconnecting the jumper cables from the
vehicle with the booster battery, switch on an
electrical consumer (e.g. the blower, but not the
lamps).
6. Disconnect the jumper cables in the reverse order to
that in which they were connected.
7. Disconnect the jumper cable from negative
terminal and vehicle ground point first (see
illustration, items 3 + 4), then from positive
terminals of the batteries (see illustration 1 + 2).
NOTE: Never try to start the engine with the aid of a
battery quick-charge unit.