How Long Does It Take to Fully Charge a Dead Car Battery?
1 Answers
It typically takes 8 to 10 hours to fully charge a dead car battery. Car batteries usually operate on a 12V current. When charging a car battery, it is recommended to use a dedicated charger to avoid affecting the battery's normal usage. Additionally, it is advisable to limit the charging time and avoid exceeding 12 hours. A car battery can also be charged through the engine's rotation. By opening the engine hood, you can see several belt-connected components, one of which is the car's alternator. The working principle of the battery is as follows: as the engine runs, it drives the alternator via the belt, generating an electric current. This current passes through the vehicle's voltage regulator and filter, with one portion being used for vehicle operations such as lights, audio, and ignition coils, while the excess is directed to charge the car battery.