Electrical and Lights

Electrical and Lights

An electrical system is a general term that describes all electronic devices and systems found in the vehicle that consume electrical power to function. They are the starting, charging and lighting systems as well as the ignition system and your onboard computer.

The heart of your electrical system is the alternator. It powers the entire vehicle and recharges the battery to make it ready for the next engine start. Working in tandem, your alternator and battery keep all electronic devices and systems powered no matter whether your engine is running or not.


Your starter is an electrical device that cranks the engine’s flywheel when you turn the ignition key or push the start button. The starter motor receives power directly from the battery when you complete the ignition circuit.


The alternator is a major component of your vehicle’s electrical system that powers the rest of the vehicle and charges the battery when your engine is running. Depending on the model you have, your alternator can provide up to 150 amps or even more. The common operating voltage provided by the alternator should be between 13.6 and 14.5 volts.


The battery is another crucial component of your electrical system. It serves to provide power to the starter and other electronic devices in your vehicle that need constant electrical energy supply. In some cases, it can handle the job of the starter for a short time if the latter can’t meet the requirements of the electrical system.