How long should you drive after jump-starting to fully recharge the battery?

[DaniellaRose]

Taking a 12V60Ah battery as an example, using the constant voltage and current limiting charging method, it first requires 16 hours of charging at a constant voltage of 14.8V with a current limit of 15A, followed by 4 hours of constant current charging at 3A, totaling 20 hours of charging time. Here are specific details about car batteries: 1. Precautions: Even if the battery capacity is only 60Ah, it will take over a month to fully discharge when the car is parked. Normal battery degradation, any modifications, or additional installations can affect the battery's charge. If the car is parked for more than a month, it is recommended to disconnect the negative terminal of the battery. 2. Charging methods: When the car battery is dead and cannot start the car, you can connect it to another car's battery using jumper cables to start the car. Alternatively, you can purchase an emergency power starter, also known as an emergency power bank, online for unexpected needs.