Last week, I stepped through the basics of automotive electrical circuits, explained how electrical current needs to flow ...

In this video, learn how to check and test a battery to determine its condition, ensuring you or a family member never gets ...

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 ...

A multimeter and its test leads allow electrical workers to reach into an energized panel, touch live circuit components with the end of the test leads, and capture electrical readings like voltage, ...

Modern digital multimeters (DMMs) are user-friendly, accurate, and safe — when used correctly! Reading voltage is simple, but measurements must be properly interpreted. With a clamp-on DMM, accurate ...

The Topdon BT200 Battery and Charging System Tester showed up at exactly the right time. I’ve gotten a couple of sporadic check engine lights from a low-voltage code with no noticeable difficulty ...

Car batteries tend to die at the most inconvenient moments, so periodic testing is the best way to avoid these troubles. Knowing what causes repeated battery failures can help you stay ahead of the ...