One of the facts of life is that batteries fail. Some take years, but eventually they will all bite the dust. However, there are so many factors in electrical systems that can go wrong, that often times the battery takes the blame for other component's problems. The easiest and fastest thing to check for problems is the battery. Here is a simple test that can tell you a lot about what is going on inside a battery, and whether it is good or not. This is not meant to test anything other than the battery, but it is a great place to start if you are having electrical problems. read more