Testing your battery regularly will prevent a dead battery from ruining your day. There’s only one way to answer the question, “Is it my battery, or something else” when your car won’t start: Hook up ...

In this report, we’re testing Topdon’s new V4500 Plus jump-starter on a 12-volt battery that is beyond dead. The product test actually is a precursor to the formal reintroduction of “Project Black ...

While using a digital multimeter to diagnose electrical problems on customers’ equipment, I frequently hear the comment, “I’ve got one of those multimeter things, but I never learned how to use it.” ...

What type of equipment is best to use for low-voltage test of battery cells? What is an electronic load, and how does it work? How to overcome a major limitation with the low-voltage-discharge test.