Make sure the ignition is off before connecting the auxiliary battery.
Make sure all electrical equipment is turned off (lights, heater fan, windshield wipers, etc.).
Make sure that the booster battery does not have any special warnings prohibiting such operations.
Make sure the booster battery has the same voltage as yours.
If a battery installed in another vehicle is used as an auxiliary battery, the vehicles must not touch each other. Make sure the shift lever is in position "neutral" (or "Park" in case of automatic transmission).
"smoking" from another vehicle will only temporarily solve the problem. You should find out the reason that led to the discharge of the battery. There may be three reasons for this:
1. The battery may have been discharged from repeated or prolonged attempts to start the engine, or because the external lights were not turned off.
2. Faulty battery charging system (the alternator drive belt is loose or broken, or the alternator wiring is faulty, or the alternator is faulty).
3. Bad battery (low electrolyte density or damaged plates).
Visitor comments