Here's why:
* Batteries: Vehicles primarily use batteries as their power source. Batteries store and release electrical energy in the form of direct current.
* Alternator: The alternator, which recharges the battery, also produces direct current.
* Electric motors: Electric motors in vehicles are designed to run on direct current.
* Electronics: While some vehicle components use alternating current (AC) for specific functions, the vast majority of the electrical system operates on DC.
While AC is used for certain applications like the headlights, the main electrical system of most vehicles relies on direct current.
