The alternator in my daily driver 2003 BMW 530i just died. Before I delve into the nuts and bolts of the replacement, it’ll ...

(iSeeCars) — Your alternator is one of the hardest working parts on your vehicle. It’s a common misconception that the battery in your vehicle is what supplies your power while the vehicle is running.

Production cars began using alternators in the 1960s. As part of the electrical system, alternators made it possible for cars to use higher voltage, and led the way to the modern car charging system.