A C Battery is a cylindrical battery commonly used in various electronic devices. It typically measures about 50 mm in length and 26 mm in diameter. C batteries are often used in toys, flashlights, and portable radios due to their ability to provide a moderate amount of power. These batteries come in different types, including alkaline, lithium, and rechargeable nickel-metal hydride (NiMH). The choice of battery type depends on the specific power needs of the device and how often it will be used. C batteries are designed to deliver a steady voltage and are widely available in stores.