
You cannot listen to music when the car is off, as it will drain the battery and shorten its lifespan if done frequently. Battery maintenance methods include: 1. Start the car periodically to charge the battery; 2. Add distilled water or a specialized replenishing fluid when the electrolyte level is low; 3. Regularly check if the vents on the battery cover are clear; 4. Inspect the battery terminals for signs of oxidation; 5. Turn off all electrical devices before leaving the car. The functions of the battery are: 1. Provide a strong starting current to the starter when starting the engine; 2. Assist the alternator in powering electrical devices when the generator is overloaded; 3. Supply power to electrical devices when the engine is idling; 4. Protect the car's electrical components.

I really enjoy listening to music in my car, especially while waiting for friends. You can definitely listen to music after turning off the engine, as the audio system runs on the battery. But once I got greedy and listened for two hours, which drained the battery and left me unable to start the car—I had to call for roadside assistance to fix it. Since then, I limit my listening sessions to 15 minutes, especially in older cars where the battery is more prone to draining. It's important to check your battery's health regularly through maintenance to avoid similar issues. Some newer cars come with an automatic power-off feature that shuts down the audio system when the battery is low. In short, listening to music is fine, but don't overdo it to avoid trouble.

As a seasoned driver, I recommend listening to music briefly after turning off the engine is fine, as the audio system consumes little power. Prolonged listening may drain the battery, making it difficult to start the car, especially in winter or when the battery is aging. Experience tells me that listening for about 20 minutes at a time is safe. It's best to avoid using headlights or other electrical devices simultaneously to reduce the load. Regularly checking the battery voltage and lifespan can prevent unexpected issues. Running into emergencies like a dead battery can be very dangerous, so caution is essential.

From a safety perspective, I do not recommend listening to music with the engine off. The battery is crucial for starting the car, and draining it may compromise driving safety. For instance, a dead battery in remote areas or at night could delay rescue efforts. If you wish to listen to music, consider using your phone or a portable speaker instead. Always ensure the battery remains sufficiently charged to handle unexpected situations.


