Electricity is just one form of energy, chemical and radiant are two other forms of energy. While energy is neither created or destroyed, it does change forms and we depend on that in our everyday lives. In this experiment, chemical energy is converted to electrical energy that in turn is converted to radiant energy. The word battery used to mean two or more military canons. Today, a collection of electrical cells is called a battery. This use of the word battery was started by Benjamin Franklin when he compared the power of a group of electrical cells to the power of a group or battery of canons. A battery of lemon cells produced enough power to make light. Most people call anything that converts chemical energy to electrical energy a battery, but technically a battery is a collection electrical cells.