: 1000x1114 px
: June 23, 2018
If your vehicle is showing symptoms such as dim lighting, "dragging" during engine starts, or frequent dead batteries, then the charging system may be at fault. Although it may seem obvious, the first item to test is the battery itself. A defective battery in an otherwise healthy electrical system can cause any of the above mentioned symptoms. Testing the battery is a simple procedure, and can performed quickly by most auto parts stores, repair shops, dealers, and even some large department stores.
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.