This video covers the essential steps to properly test a car's alternator and diagnose common alternator issues. The guide demonstrates how to check the voltage regulator, diode rectifier, stator, and ...

A charged battery is a happy battery. Keeping your car’s battery properly charged is essential to long life and reliab ...

But there are ways to make sure you’re getting the most out of the battery for your internal combustion engine vehicle and to reduce the chance you’ll be dealing with a dead battery at the ...

Diagnose dead headlights with our step-by-step troubleshooting guide. Learn to check fuses, bulbs, relays, and wiring—plus upgrade tips for reliable LED replacements.

Does every repair or service require a diagnostic fee? Be the judge and find out how to DIY this car owner's problem, then ...

You’re scrolling through Craigslist at 11 PM, looking at a rusty car that’s been sitting since Obama’s first term. The seller ...

A mechanic's warning is making the rounds: "You might have this in your vehicle—and it's one reason why you need to get rid of it." The culprit? Devices that cause parasitic battery drain without you ...

If you're in a pinch and considering cranking your car with the battery from one of your power tools, don't. It's actually an incredibly dangerous prospect.

Learn how CR tests cars at its 327-acre Auto Test Center. We drive nonstop and dig into data so you can make a fully informed choice on your next auto purchase.

Symspire President James Ward reflects on three decades in the security industry and the lessons he’s learned from building ...

Xueyu Car Battery Charger, $21 (was $50) at Walmart Get it! This unit features a backlit LCD display that shows charging status, voltage, current, temperature, and mode selection.

“I have recently read your article on the life span of a battery. What brand of battery would you recommend for a replacement?” ...