LR09 batteries, commonly called "small vial" batteries, are commonly used in motion sensors, radio controls, electronic scales, toys, and a wide range of measuring devices, as their small size and high voltage provide some ideal features for many electronics manufacturers. Alkaline batteries have a shelf life of approximately 6 years. A 9 V battery measures 48 x 26 x 17 mm and weighs 45 grams. They are also available in the rechargeable HR22 model, with the same diameter and thickness, and their weight varies depending on the model's capacity. Like all rechargeable batteries, their voltage is 1.2 volts, and their mAh capacity may vary depending on the brand and model.
