Does idling help charge the car battery?

Yes, idling can help charge the car battery. When the battery charging indicator on the dashboard is not lit, it indicates that the car is currently charging.

Here are some important considerations for charging the battery:

1. It is recommended to directly connect the battery for charging, avoiding the need to remove it, as this may cause data loss.

2. If the battery voltage is more than 10% below the rated voltage, the battery may be considered to be discharged.

3. It is important to avoid water getting into the battery while charging.

The role of the car battery is as follows:

1. When starting the engine, the battery provides power for the starting system, ignition system, and electronic fuel injection system.

2. When the engine stops running or is idling, it supplies power to the car's electrical devices.

3. When the generator output is insufficient, it can assist in supplying power to the electrical devices.

4. It can smooth out the voltage spikes in the electrical system and protect the car's electronic devices.

5. It can store the excess electricity generated by the generator.