How Long Should a Car Battery Be Charged?
1 Answers
For deeply discharged batteries, the charging time should be 10-15 hours to reach a full charge. There are two methods for charging a car battery: fast charging and slow charging. Below are relevant introductions about battery charging: 1. Fast charging (constant current charging): Many car owners believe that fast charging can save time, requiring only 3-5 hours; however, this is not the case. Fast charging merely quickly activates the surface of the battery, while the interior of the battery is not fully charged. 2. Slow charging (constant voltage charging): Another method for charging a car battery is slow charging, which takes 10-15 hours. Deeply discharged batteries must undergo slow charging; otherwise, insufficient charging time and charge quantity will directly affect the driving performance of the car.