HOW A BATTERY WORKS
A battery stores electricity for future use. It develops voltage from the chemical reaction produced when two unlike materials, such as the positive and negative plates, are immersed in the electrolyte, a solution of sulfuric acid and water. In a typical lead battery, the voltage is approximately two volts per cell, for a total of 12 volts. Electricity flows from the battery as soon as there is a circuit between the positive and negative terminals. This happens when any load that needs electricity, such as a radio, is connected to the battery.
The Discharging and Charging Process of A Battery
Lead batteries operate in a constant process of charge and discharge. When a battery is connected to a load that needs electricity, such as a starter in a car, current flows from the battery and the battery begins to discharge. As