The AAA cell, also known as a triple-A battery, is a standard cylindrical dry cell used to power small electronic devices. Measuring 44.5 mm in length and 10.5 mm in diameter, it delivers 1.5 volts in alkaline and zinc–carbon chemistries, while rechargeable NiMH versions typically provide 1.2 volts. Commonly found in remote controls, wireless peripherals, toys, and medical devices, AAA cells are valued for their compact size, reliability, and widespread availability, making them essential for everyday portable electronics.