Testing your car's battery is an important part of routine maintenance. You can check the battery yourself using a voltmeter or multimeter, or have it tested professionally.

Multimeters can be a useful tool for both novices and professionals to limit their mistakes in automotive repair. Here's how to properly use one.

If a device stops working, it can be tough to tell if its battery has died or the product itself. There are easy ways to rule out a dead battery, though.