Can the car battery charge when the engine is running but the car is not moving?
2 Answers
Can the car battery charge when the engine is running but the car is not moving? The maintenance methods for the battery are: 1. Regularly check whether the small holes on the battery cover are ventilated; 2. Check whether the positive and negative terminals of the battery are oxidized; 3. Check whether any part of the circuit is aged or short-circuited; 4. Adjust the density of the electrolyte according to different regions and seasons based on standards; 5. Add distilled water or special replenishing fluid when the electrolyte is insufficient; 6. The total duration of starting the car each time should not exceed 5 seconds; 7. Charge the battery in time when the ammeter pointer shows insufficient power; 8. Start the car periodically when the battery is not used for a long time.
When it comes to whether a car's battery can charge when the engine is running but the vehicle isn't moving, this actually involves the working principle of the alternator. In the automotive field, I've pondered this question for years: as long as the engine is running, the alternator starts working, driven by the belt to charge the battery, regardless of whether the wheels are moving or not. However, charging efficiency is affected by engine speed. At idle, the speed is lower, resulting in slower charging. For example, when the battery is low, it may take ten to fifteen minutes to effectively replenish it. Additionally, it's important to note that prolonged idling increases fuel consumption and exhaust emissions, and may also lead to engine carbon buildup. Therefore, I recommend controlling the time reasonably. I've tried it several times myself: after starting the car and leaving it parked in the garage, the battery recovers after a while, provided the charging indicator light isn't on. In conclusion, it's completely feasible technically, but a balance must be struck between maintenance and environmental factors.
