Can the battery be charged directly in the car?

[VonLilliana]

It is possible to charge the battery directly in the car. When starting the car, the starter requires a large current, which a regular charger cannot provide. If the battery is dead, the car won't start. The principle of charging is that the voltage must be about 20% higher than the battery's voltage to charge it effectively. Too high a voltage can damage the battery, while too low a voltage won't charge it. Uses of car batteries: 1. For starting and lighting in cars, motorcycles, tractors, diesel engines, etc.; 2. As backup power for protection and automatic control in communications, power plants, and computer systems; 3. As power sources for various battery-powered vehicles, forklifts, and loaders; 4. For starting and lighting power in diesel locomotives, electric locomotives, and passenger trains.