The car charging system consists of three main components, namely the battery, the voltage regulator and the generator, and the generator works with the battery to generate energy for the car's electrical components, such as the internal and external lights and the dashboard, and the "dynamo" generators are usually near the front of the engine and are driven by the crankshaft, which converts piston moves up and down into circular motion.
    
     
        Dynamo generator
The generator is basically how it looks like  the car has an endless supply of electricity, and it takes a lot of  juice to run and meet all the different electrical needs of the car,  while different batteries can have enormous capabilities, but the  headlights, heater, stereo, navigation, and entertainment information  all drain battery power The generator charges the battery while the car  is running by converting mechanical energy from the spinning wheel to  current, and the other internal parts of the generator wear out over  time so replacing it is something that everyone needs in the end, and  the following symptoms should give you an idea of what went wrong, but  if You are still not sure, you can always go to your car for  maintenance to test the charging system and start.
Symptoms of a poor electric car generator
1- Dim lights
Symptoms  of poor dynamism that most drivers recognize are dimmed or flashing  lights, and this is very evident when the headlamps are illuminated at  night, but also noticeable in lighting lamps and the central dome lamp,  and if the lights are bright while capturing RPMs then this is a more  certain indication.
2- Step drive
Another obvious sign is that  your car is trying to tell you, and this varies depending on the model,  but when the generator starts to abandon it, it can light up "Check  Engine", "ALT" or Battery Symbol Indicator.
3- Strange sounds
The  serpentine belt may extend with the age of the car and may not manage  the generator pulley effectively, which leads to a lack of charging, and  this usually results in squeaking sound, and on the other hand the  internal bearings can wear out, causing noise of roar or grinding.
4- Electrical issues
It  may be slow to operate electric car equipment, such as power seats or  windows, and without sufficient power Sometimes the device will not work  or will stop working suddenly, such as turning off the radio itself.
5- The engine stops
If  the engine suddenly stops while driving, it may be a problem with the  dynamo, and fuel injection requires a large amount of electrical energy,  without which the engine fails quickly.
6- An empty battery
Without  a working generator, the car consumes very quickly all the battery  capacity, which causes it to drain electricity, emit the hood and check  the battery, and you might think that you found the defect.
How to diagnose a car's dynamo
If  you have a "Check Engine" light, connect a code reader to the  diagnostic port, and if you find the P0562 code you will likely have a  failed replacement generator (note that the codes may vary depending on  the vehicle type/model/year) outside, and before it fails completely if  you are If you suspect a damaged generator but you do not have a warning  light, remove the cap and check the belt condition, and if the surface  is glazed and there is heat this is an indication that it slips, and the  belt is very loose so it slides on the rollers, and the mineral  friction on the rubber heats the belt and quickly wears it, adjust The  motor to get the belt completely (the tightness can also damage the  generator bearings), or just replace the serpentine belt because it is  among the most auto parts you can buy and is a quick and easy fix.
Start  the engine and check the voltage again, this time it must be at least  14.2 volts if the generator is healthy and charging the battery, and if  the voltage is good then turn on the headlights, interior lights, radio,  heating, and any other electrical load, and the meter should still be  above 13 volts, and if any of the voltages are less than the  specifications it is a strong case for a new generator, and check all  your cables for corrosion or a loose contact, and if there are problems,  stop for maintenance and to get the spare parts that you need.
        
           Nikola Tesla
Nikola  Tesla paved the way to modern electricity, but Thomas Edison is  considered one of the greatest inventors of all time, and Tesla and  Edison were among the fierce opponents of the currents war in the late  nineteenth century, while Edison is credited with inventing the first  light bulb and confining a market Energy with his work in direct current  or DC power, and Tesla was the one who developed the first AC induction  motor and AC power, and after supporting George Westinghouse Tesla the  two sides managed to compete in the electricity market, Edison launched a  propaganda attack against AC power and went as far as developing The  electric chair to prove the lethality of the AC power, and ultimately  the AC power won as it can travel far and produce more effort and serve  more customers more efficiently, and Tesla's invention and pioneering  work provided the basis for the modern generator.