This simple test allows you to check the health of your car's battery.

When your car doesn’t start, often the battery is the culprit. Unfortunately, most vehicle owners do not check their battery until it fails. As preventative maintenance, the suggested best practice is ...

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 ...

To test a battery’s DC charge, touch the red probe to its positive terminal and the black probe to its negative terminal; the multimeter will display the existing charge in the battery.

How To Test An Alternator? Using A Multimeter The easiest way to test an alternator is by using a multimeter. If that’s a tool you have on hand, just follow these instructions: Turn off the engine.