Duracell Alkaline-Micro MN21/A23 2pc Batteries

Keep your vital access and security devices running smoothly with the Duracell Alkaline-Micro MN21/A23 12V Batteries (2-Pack). Manufactured to Duracell's industry-leading standards, these high-drain miniature alkaline cells are engineered to provide maximum power output and exceptional reliability over an extended lifespan.

Consistent Long-Range Performance

Unlike standard generic cells, Duracell MN21 batteries maintain a strong, stable discharge curve. In practical applications—such as garage door remotes and gate openers—users experience noticeably superior transmission range and responsiveness over time, eliminating the frustration of having to be right next to a receiver for it to trigger.

Key Features

• High 12V Output: Delivers robust power required by compact radio-frequency transmitters and smart security hardware.
• Broad Compatibility: Directly equivalent to A23, 23A, V23GA, MN21, LRV08, and MS21 battery designations.
• Long Shelf Life: Advanced leak-resistant construction and preservation technology keeps stored cells fresh and ready for emergency replacements.
• Convenient Dual Pack: Includes 2 individually sealed batteries, perfect for multi-remote households or keeping a reliable spare in the drawer.

Common Applications

Duracell MN21/A23 batteries are widely deployed in security and remote-control electronics, including:

• Garage door openers and automatic gate controllers
• Car key fobs and keyless entry remotes
• Wireless alarm system sensors, magnetic door contacts, and PIR motion detectors
• Wireless doorbells and medical alert transmitters