The lead acid battery is a type of electrical energy storage cell, which is formed by lead plates alternated with others of lead dioxide, which are separated for an element soaked in sulfuric acid diluted in distilled water, call electrolyte. Each pair of those plates generates 2 volts voltage. As the typical configuration is 12 volts, it requires 6 pairs of the mentioned plates to reach the 12 volts voltage. Depending on the total surface of the plates, the battery will reach a certain capacity, whose unit of measurement is Ampere-Hour (Ah).
Also, depending on the type and shape of the internal separating grid, the battery will be more or less able to provide electrical energy demanded by load. That is to say, battery design will be optimized to be able used in a stationary, cyclical, starting, traction or solar energy application.
By its physical form and construction type, there are 2 different groups of lead batteries: prismatic batteries and cylindrical batteries