To power your drive in Macon, and around Warner Robins and Milledgeville, GA, your car uses a lot of electricity. A rechargeable battery and a charging system work together to supply that electrical power as needed.

How does a car charging system work? The certified service technicians at Butler Toyota want to key you into the answer to that question! As you read, you'll learn more about your car's charging system as well as how its parts come together to power your vehicle. Reach out to us for more information!

Your Car Battery: The Powerhouse

The car battery is central to your vehicle-and to the charging system. You need 12-volt electricity to get the car started, keep it moving, and power the headlights and other key components. The battery is the source of the electricity that starts the ignition process.

How does that work, exactly? The ignition spark journeys from the battery up through the coils, where it is sent to each spark plug to ignite the fuel and make the engine run.

In an Alternative State

So, how is AC power created? Magnets inside the alternator will move past a coil of wire. As each pole of the magnet passes by, it moves electrons within the wire in one direction and then in the opposite one. This creates a flow of electrical current that moves back and forth.

This process is important because the amperage is high enough to create an ignition spark and still leave enough power for everything else, from the radio to the headlamps.

Propelling the alternator is a long belt attached to the crank of the engine. As it spins, the engine turns the alternator and generates AC current. Before the electricity can leave the alternator, though, a circuit of diodes called the rectifier converts that AC current into DC current.

The Voltage Regulator Is in Charge

When the DC current leaves the alternator assembly, it's distributed by the voltage regulator, which also keeps the current in check. This regulator balances current distribution between the vehicle's electrical needs and recharging the battery, so those needs can be provided on a continuous basis.

If the current drops below a certain voltage, the regulator sends current to the battery to charge it. And, if the voltage rises too high, the regulator will move the current to the engine and accessories. A delicate balancing act ensures there's electrical power where you need it most.

Throughout the whole process, simple DC current converts to high-power AC and then back to DC to be used for the ignition, headlamps, and much more.

Explore Your Car Charging System with Us

We hope you enjoyed learning how a car charging system works! Motorists in Macon, and around Milledgeville and Warner Robins, Georgia, can reach out to us at Butler Toyota to learn more.

If your car's charging system isn't working as it should, you can book an appointment here at our service center. Our certified auto technicians can inspect the system, find the root of the problem, and have the system restored to its former glory. We look forward to working with you!

Make an Inquiry


Butler Toyota

4580 Riverside Drive
Directions Macon, GA 31210

  • Sales: 4788450855
  • Service: 478-216-5800
  • Parts: 478-216-5800


  • Monday 9:00AM-8:00PM
  • Tuesday 9:00AM-8:00PM
  • Wednesday 9:00AM-8:00PM
  • Thursday 9:00AM-8:00PM
  • Friday 9:00AM-8:00PM
  • Saturday 9:00AM-8:00PM
  • Sunday Closed