Dodge 2012 Ram Diesel - Manual (Page 97)

4. After the engine is started or if the engine fails to start,
cables must be disconnected in the following order:
a. Disconnect the negative cable at the engine ground.
b. Disconnect the negative cable at the negative post
on booster battery.
c. Disconnect the cable from the positive post of both
batteries.
WARNING!
Any procedure other than above could result in:
• Personal injury caused by electrolyte squirting out
the battery vent;
• Personal injury or property damage due to battery
explosion;
• Damage to charging system of booster vehicle or
of immobilized vehicle.
With Portable Starting Unit
There are many types of these units available. Follow the
manufacturer’s instructions for necessary precautions
and operation.
CAUTION!
It is very important that the starting unit operating
voltage does not exceed 12 Volts DC or damage to
battery, starter motor, alternator, or electrical system
may occur.
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WHAT TO DO IN EMERGENCIES 95