How long can the car battery be fully charged after running

The most feared of car battery (battery) is the loss of electricity. There is a generator next to the car engine. The belt of the engine drives the generator to rotate, and then the generator generates electricity to provide electricity to other places in the car. At the same time, it generates electricity to charge the battery, and at this time, the battery will have a continuous source of power.

How long can the car battery be fully charged after running out of battery?【for reference only】

Take a 12 volt 60 mA battery as an example. The battery is charged with constant voltage and current limiting. It is charged at a constant voltage of 14.8V with a current limit of 15A for 16 hours, and then charged with a 3A constant current for 4 hours. It takes 20 hours to fully charge. Knowing that the battery is losing power, it’s best to remove it and recharge it. The battery will have a longer service life. If you often lose power and don’t charge it in time, you will be dissatisfied when you drive to charge it for a while.

Is it possible to charge in idling state?

When the car is idling, the voltage of the generator (ie, the potential difference) can meet the charging conditions. Although the current is very low, it is basically sufficient, but the premise is that the air conditioner, the high beam, and the vehicleAudioThe high power of the refrigerator cannot be used, otherwise the maximum output power of the generator will be exceeded, and the battery will be overdrawn, causing permanent damage to the battery.

[Idle speed charging will not hurt the car, and the carbon deposits produced are less compared with frequent acceleration]