: 1023x788 px
: April 10, 2018
An auto battery is built up of six cells, each containing stacked positive and negative lead plates. These are divided and separated by insulators and immersed in an electrolyte, a liquid blend of sulfuric acid and water. However, some batteries, use a gel instead of the electrolyte. This is considered to be safer and because you do not have to refill it with electrolyte, it has been labelled "maintenance-free". Each cell generates or more correctly put, stores 2.1 volts for a total of 12.6 volts.
When you pop the hood and look at the complicated mechanical devices called engines, you notice right away there's plenty of wiring. In fact, the wires seem to snake around the engine in a complex configuration that makes little sense to anyone who is not a mechanic. Auto engines have plenty of electrical configurations that are critical to their smooth operation. The fact is that when a car experiences problems, it could easily be an electrical problem as much as it could be a mechanical problem. Any qualified mechanic needs to be familiar with both mechanical and electrical problems in order to be efficient at his or her job. That means a mobile car mechanic must be prepared to complete a variety of repairs including those related to the electrical systems.