Can the Battery Be Charged While the Car is Idling?
1 Answers
It is possible to charge the battery while the car is idling, but the charging amount is relatively small, the charging time is long, and the charge may not be stable. Generally, this method is not recommended. Idling refers to the engine running in neutral gear without the car moving, consuming fuel while stationary. The charging duration can also be affected by other factors, such as whether high-power devices are in use inside the car, air conditioning is turned on, or external USB power is being supplied—all of which can increase charging time. Charging while idling consumes more fuel, and emissions during idling are highly polluting. Occupants should not sleep in a closed car with the air conditioning on, as incomplete combustion in the engine can produce carbon monoxide, which can accumulate to lethal concentrations inside the vehicle. If possible, it is advisable to use a dedicated battery charger for charging the car battery.