How long does it take to fully charge a car battery while driving?

[VanDiana]

There are two main aspects to fully charging a car battery: 1. If the car battery is removed and charged using a charger, it typically takes about 5-8 hours to charge under normal conditions when the battery is not severely depleted. 2. If the car alternator is used for charging, it generally takes about 10 hours. Additional information: Daily precautions for battery usage: 1. Turn off all lights before shutting off the engine. Some older car models do not support automatic power-off after the engine is turned off, so you need to manually turn off the headlights and interior reading lights. 2. Turn off the air conditioning and audio system before shutting off the engine. The air conditioning system involves the compressor and blower, and the audio system is also a high-power electrical device. If not turned off before shutting down, they will automatically start the next time the car is turned on, placing a heavy burden on the battery and causing damage.