Charging Sytem of an Auto bile Study 1

Description:
The charging system included a battery , an alternator with a built-in regulator , and the charging indicator light and wire.
The Alternator has built in diodes, rectifying AC current to DC current.
Therefore , DC current appears at alternator ,”B” terminal. In addition , the charging voltage of this alternator is regulated by the battery voltage detection system. The main component of the alternator are the rotor, rectifier, capacitor brushes, bearing and V-ribbed belt pulley. The brush holder contains a built in electronic voltage regulator.
On Vehicle Inspection:
CAUTION:

• Check that the battery cables are connected to the correct terminals.
• Disconnect the battery cables when the battery is given a quick charge.
• Never disconnect the battery while the engine is running.

Check the Battery Voltage

1. If 20 minutes have not passed since the engine was stopped , turn the ignition switch On and turn On the electrical system(head lamp, blower motor, rear defogger ect.) for 60 seconds to removed the surface charge.
2. Turn the ignition switch Off and turn Off the electrical system.
3. Measure the battery voltage between the negative (-) and the positive(+) terminals of the battery.

Standard Voltage: 12.5~ 12.9V at 20 degrees Celsius (68 “F) 
= If the voltage is less than specification, charge the battery.