Testing a car battery seems straightforward, but there are several things vehicle owners should know beforehand. For instance, what type of tools should you use: a battery load tester or a digital tester? What safety equipment should you plan for?
Learn the basics of why and how to use a battery load tester by watching this video.
If you have done a voltage test and the result seems off, perhaps the conditions of the test are wrong. Find out how to get a reliable result here.