We may earn a commission from links on this page. Recent dash light disco electrical mayhem from the Starlet served as a reminder that an automotive electrical system can go haywire at any time. An ...

Your alternator quietly does more than keep the battery topped up. It turns the engine’s rotation into a steady flow of electrical power that keeps every modern system in your car alive, from fuel ...

Your car only starts reliably because two electrical workhorses share the load. The battery delivers instant power on demand, ...