AG12 Alkaline Button Cell Battery (LR43, 186, SR43) The AG12 is a high-quality 1.5V alkaline button cell battery, ideal for a variety of small electronic devices. Measuring approximately 11.6 mm in diameter and 4.2 mm in height, it is commonly used in watches, calculators, medical devices, toys, and small LED flashlights. This battery provides steady, reliable power and has a long shelf life, making it a trusted choice for everyday gadgets. Key Features: Voltage: 1.5V Chemistry: Alkaline Size: 11.6 mm (diameter) x 4.2 mm (height) Long-lasting power and stable performance Leak-resistant design Also known as: LR43, 186, SR43, RW84, V12GA, L1142, GP186