For users needing reliable, high-voltage power for specialized devices like keyfobs, door alarms, security systems, and cameras, the Duracell MN21 A23 12V Alkaline Batteries offer a long-lasting and dependable solution. While providing excellent performance for compatible electronics, it's crucial to verify your device requires a 12V A23/MN21 type battery to ensure proper function and avoid damage.
High Voltage Output: Provides a consistent 12V power supply, ideal for devices requiring higher voltage than standard AA/AAA batteries.
Alkaline Chemistry: Offers stable power delivery and a long shelf life, ensuring readiness when needed.
Wide Compatibility: Serves as a direct replacement for multiple common battery types including MN21, A23, 23A, LRV08, K23A, E23A, L1028, RV08, and GP23A.
Compact Design: Measures 10.3mm in diameter and 28.5mm in length, fitting precisely into small, specialized electronic devices.
Duracell Quality: Manufactured by Duracell, known for industry-leading quality and reliability in battery production.
Long Shelf Life: Blister-packed with an expiry date of 2029 (as per product info), ensuring power retention until use.
Versatile Application: Specifically designed for use in keyfobs, garage door openers, wireless door alarms, home security systems, and small camera equipment.
Reliable Power: Duracell's manufacturing quality ensures consistent and dependable performance.
Specialized Voltage: Delivers the specific 12V required by many security and remote control devices.
Broad Cross-Reference: Replaces numerous battery types, simplifying replacement searches.
Long-Lasting: Designed for extended use in low-drain, critical applications.
Non-Rechargeable: As alkaline batteries, they are single-use and cannot be recharged.
Specific Application: Not a general-purpose battery; primarily for devices requiring 12V A23/MN21.
Voltage Sensitivity: Incorrect use in devices designed for lower voltage batteries could cause damage.
Reliable Power: Duracell's manufacturing quality ensures consistent and dependable performance.
Specialized Voltage: Delivers the specific 12V required by many security and remote control devices.
Broad Cross-Reference: Replaces numerous battery types, simplifying replacement searches.
Long-Lasting: Designed for extended use in low-drain, critical applications.
Non-Rechargeable: As alkaline batteries, they are single-use and cannot be recharged.
Specific Application: Not a general-purpose battery; primarily for devices requiring 12V A23/MN21.
Voltage Sensitivity: Incorrect use in devices designed for lower voltage batteries could cause damage.
The Duracell MN21 A23 12V battery is engineered to provide stable and efficient power for a range of specialized electronic devices. Its 12V output is crucial for maintaining the functionality of items such as:
Vehicle Keyfobs: Ensures your car remote works reliably for locking, unlocking, and starting your vehicle. A stable 12V ensures consistent signal strength.
Garage Door Openers: Powers the remote control, allowing for seamless operation of your garage door.
Home Security Sensors: Critical for wireless door/window alarms and motion sensors, ensuring they remain active and responsive to potential threats.
Medical Alert Pendants: Provides the necessary power for emergency alert systems, offering peace of mind.
Small Camera Equipment: Can power certain compact cameras or accessories that specify this battery type.
In these applications, the consistent voltage and long-lasting nature of Duracell alkaline chemistry translate to fewer battery changes and reliable device operation when it matters most. For instance, a security sensor powered by this battery will likely maintain its active status for a considerable period, reducing the need for frequent checks or replacements.
Identify Polarity: Most battery compartments are clearly marked with + (positive) and - (negative) symbols.
Insert Correctly: Align the battery according to the polarity markings in your device. The + end of the battery (typically the smaller, raised terminal) should match the + marking in the device.
Secure Compartment: Close the battery compartment securely after insertion.
Test Device: Activate your device to ensure it powers on and functions correctly.
The Duracell MN21 A23 12V battery is designed to replace a wide range of equivalent types. Always check your device's manual or existing battery for the required type. It is compatible with:
MN21
A23
23A
LRV08
K23A
E23A
L1028
RV08
GP23A
Important: Do not attempt to use this 12V battery in devices that explicitly require a different voltage (e.g., 1.5V, 3V, or 9V) as this can damage the device.
Storage: Store batteries in a cool, dry place at room temperature. Avoid extreme temperatures and direct sunlight. Keep them in their original packaging until ready for use to prevent accidental discharge or short-circuiting.
Handling: Do not store loose batteries together, especially with metal objects, as this can cause a short circuit. Avoid exposing batteries to water.
Disposal: Dispose of used batteries responsibly according to local regulations. Many communities have battery recycling programs. Do not throw batteries into fire.
Child Safety: Keep batteries out of reach of small children and pets. If a battery is swallowed, seek medical attention immediately.
Note: The expiry date (e.g., 2029 as per product information) indicates the last date for optimal performance when stored properly.