A common type of direct current (DC) power source, this electrochemical device provides a potential difference of approximately 12 volts. It is frequently employed to initiate and operate electrical systems in vehicles, boats, and various portable electronic devices. Functionally, it converts chemical energy into electrical energy through a controlled chemical reaction, sustaining a flow of electrons. For example, it serves as the primary power source for starting a car engine and powering its lights and accessories.
Its significance stems from its reliable energy storage and delivery capabilities. Historically, improvements in battery technology have facilitated advancements in transportation and portable power applications. The standard voltage level allows for compatibility with a wide range of electronic components and systems, contributing to its widespread adoption across numerous industries. The stable voltage output also protects sensitive electronic equipment from voltage fluctuations.