Can a Car Charge When It Doesn't Move While Starting?

[McCora]

Can a car charge when it doesn't move while starting? The answer is yes, but on the condition that all electrical appliances (except the engine operation) are turned off. Here are the details: 1. The alternator can only charge the battery when it is working, and the power source of the alternator comes from the engine. After the car starts, the engine begins to work, and it transmits power to the alternator through the belt, thereby starting to charge the battery. It should be noted that the charging efficiency differs between idling and driving states. 2. When driving the car, pressing the accelerator increases the engine speed, providing more power to the alternator. As a result, the alternator generates more electricity, leading to a higher charging rate for the battery. In contrast, during idling, the alternator runs at a slower speed, resulting in limited power output. 3. The alternator does not charge the battery indefinitely. The battery is equipped with a sensor. If the sensor detects that the battery is fully charged, it will stop charging the battery.