* The battery is the primary power source for starting. The alternator's job is to recharge the battery and provide power to the electrical system while the engine is running.
* A bad alternator can't recharge the battery. If your alternator is failing, it won't be able to replenish the battery's charge.
* The battery will eventually drain. The car will continue to run on the battery's stored energy until it's depleted. Once the battery is drained, the car will stall and won't be able to restart until the battery is recharged.
Signs of a bad alternator:
* Dim headlights: If the alternator is failing, the headlights will become dim, especially at idle.
* Battery warning light: This light will illuminate on the dashboard if the alternator is not working properly.
* Electrical problems: Other electrical components may start to malfunction, such as power windows, radio, or air conditioning.
* Car stalling: The car may stall when the battery is completely drained.
Important note: Even if your car starts with a bad alternator, it's crucial to get it repaired as soon as possible. Driving with a bad alternator can lead to further damage to the battery and electrical system, leaving you stranded.