No, Benjamin Franklin did not invent the battery. The invention of the battery is credited to Alessandro Volta, an Italian physicist, who created the first true battery, known as the Voltaic Pile, in 1800.
However, Franklin made significant contributions to the understanding of electricity during the 18th century. He is best known for his experiments with static electricity and his famous kite experiment, which demonstrated the electrical nature of lightning. While Franklin’s work laid the groundwork for the field of electrostatics and he contributed to the development of electrical terminology, he did not construct a device that could store and provide a continuous flow of electrical current like the battery does.