9VoltBatterie

The 9-volt battery, also known as a PP3 battery, is a standard rectangular battery characterized by its 9-volt electrical potential and its distinctive snap connector at the top. It is commonly used in a wide variety of consumer electronics, including smoke detectors, portable radios, and electronic toys.

Commercially introduced in 1959 by the Burgess Battery Company, the 9-volt battery quickly gained popularity due to its compact size and relatively high voltage for its form factor. Its design features two terminals, a positive terminal and a negative terminal, located on the same end of the battery. These terminals are designed to mate with a specific connector found in compatible devices.

9-volt batteries are available in several chemistries, with alkaline and zinc-carbon being the most common for disposable applications. Rechargeable versions, typically made with nickel-metal hydride (NiMH) or lithium-ion technology, are also available for those seeking a more sustainable and cost-effective solution for frequently used devices. The lifespan of a 9-volt battery depends on its chemistry and the power consumption of the device it is powering.

While widely used, the 9-volt battery's relatively low energy density compared to larger battery formats means it is not suitable for high-drain applications like power tools or large audio equipment. Its specific voltage and connector type make it a unique and recognizable power source in the world of portable electronics.