What is the role of the alternator in a vehicle?

The role of the alternator in a vehicle is to generate electrical power and recharge the battery while the engine is running. The alternator converts mechanical energy from the engine into electrical energy, which powers the vehicle's electrical systems, including lights, radio, and vital engine management systems. Additionally, it replenishes the battery charge, ensuring that it has enough power to start the engine when needed. This continuous generation of electrical power is crucial, especially when the vehicle uses accessories that draw from the battery, as it ensures that there is a stable power supply while the vehicle is operational.