Can a Vehicle Charge the Battery While Idling?

[MacHaley]

Yes, a vehicle can charge the battery while idling. The principle involves the external circuit receiving electrical energy and converting it into chemical energy stored in the battery. Functions of an automotive battery: 1. Starting the engine system, ignition system, electronic fuel injection system, and powering the vehicle; 2. Supplying power to electrical devices when the engine is off or idling; 3. Assisting in power supply when electrical demand exceeds the generator's capacity; 4. Acting as a voltage stabilizer for the vehicle's electrical system, mitigating voltage spikes in the ignition system and protecting electronic devices; 5. Storing excess electricity generated by the alternator to recharge the battery when the engine is running.