27A Battery The 27A 12V alkaline battery is a compact, high-voltage power source ideal for small electronic devices. Commonly used in car key fobs, garage door remotes, wireless doorbells, and security systems, this battery delivers reliable performance and long shelf life. Its leak-resistant design ensures safe and stable operation in demanding applications. Key Features: Battery Type: 27A Alkaline Voltage: 12V Compact size with strong, stable output Ideal for car remotes, wireless alarms, and keyless entry systems Leak-resistant construction for added safety Shelf life: Up to 3 years