If your car or truck won’t hold a charge, or if you’re having signs electrical gremlins like dimming headlights, you probably ...

Your alternator quietly does more than keep the battery topped up. It turns the engine’s rotation into a steady flow of ...

Disconnecting the battery while the engine is running isn't a valid test for alternator function and may damage sensitive electronic parts. Instead, use a common voltmeter and the following test ...

The reality is that like almost every component under the hood, a car battery has a finite lifespan and will conk out on you eventually. Weather conditions, corrosion, electrical shorts, charging ...