9 volt carbon zinc battery
The 9 volt carbon zinc battery is a fundamental power source that has been a reliable choice for numerous electronic devices. This primary battery type utilizes carbon and zinc in its electrochemical composition, offering a nominal voltage of 9 volts through a series of six individual 1.5-volt cells connected in series. The battery's construction features a zinc can serving as both container and negative electrode, while a carbon rod acts as the positive electrode. The electrolyte consists of ammonium chloride and zinc chloride in an aqueous solution. These batteries are particularly valued for their cost-effectiveness and widespread availability. They excel in devices with intermittent use patterns and low to moderate power requirements, such as smoke detectors, transistor radios, and various testing equipment. The compact rectangular design, standardized across manufacturers, ensures universal compatibility with a wide range of devices. While not rechargeable, these batteries offer reliable performance in appropriate applications and maintain a stable voltage output throughout their service life. Their relatively simple chemistry makes them environmentally less harmful compared to some other battery types, though proper disposal is still recommended.