Starting the engine on auxiliary power will help you get out of your predicament, but you should first find and fix the cause of the battery drain. There are three possible reasons:
1. The battery is dead due to repeated attempts to start the engine or as a result of leaving the lights on for a long time.
2. The charging system is not functioning properly (alternator drive belt loose or broken, alternator wiring damaged, or alternator not working).
3. The battery itself is faulty (low electrolyte level, expired battery).
When starting the vehicle from an auxiliary source, the following precautions should be observed:
- Make sure the ignition is off before connecting an auxiliary battery.
- Make sure all electrical loads are disconnected (lighting fixtures, heater, windshield wipers, etc.)
- Make sure the booster battery has the same voltage rating as the one running low in the car.
- If starting from a battery installed in another vehicle, the bodies of both vehicles MUST NOT HAVE any contact points.
- Make sure the transmission is in neutral (or in position "P" in case of AT).
Scheme
1. Connect one end of the red wire from the jump start kit to the positive () dead battery terminal.
2. Connect the other end of the red wire to the positive () auxiliary battery terminal.
3. Connect the end of the black wire from the kit to the negative (-) auxiliary battery terminal.
4. Connect the other end of the black wire to a bolt or engine block bracket of the offending vehicle far enough away from the battery mounting location.
5. Make sure wires do not touch fan blades, drive belts, or other moving parts in the engine compartment.
6. Start the engine on the auxiliary battery, then, leaving it running at idle, disconnect the wires in the reverse order of their connection.
Connect the wires from the Auxiliary Starter Kit in the order shown in the figure (note that the negative lead of the auxiliary battery is NOT connected to the negative terminal of the dead battery).