Duracell MN11 (A11) Specialty Alkaline — Compact 6V Power for Access Remotes and Specialty Gear

The Duracell MN11—also known as A11—is a compact 6-volt alkaline battery used in select car security remotes, keyless entry transmitters, and niche electronics that require high voltage in a small cylindrical form. If your device lists “MN11” or “A11,” installing the exact code preserves fit, contact pressure, and the reliable activation your transmitter or instrument expects.

Why MN11?

• High-voltage output (6V): Suits RF transmitters and compact electronics that need a stronger push than 1.5V cells.
• Small footprint: Fits housings too narrow for AA/AAA formats.
• Stable performance: Alkaline chemistry provides dependable starts for intermittent-use remotes.
• Leak-resistant design: Helps protect delicate contacts and small PCB pads.

Typical Applications

• Vehicle security and keyless entry transmitters specified for MN11/A11
• Small RF remotes and specialty controls
• Select medical or industrial devices (per device manufacturer)

Technical Snapshot

• Chemistry: Alkaline (primary)
• Voltage: 6 V
• Designations: MN11 / A11 / 11A (common cross-references)
• Form factor: Slim cylindrical specialty battery

MN11 vs. MN27 vs. MN21

MN11 (6V) is distinct from MN27 (12V) and MN21/A23 (12V). Although these specialty batteries may look similar in shape, their voltages and dimensions differ. Always use the exact code printed on the old battery or the device label to ensure correct fit and transmitter performance.

Installation Guide

1. Identify the code: Confirm “MN11”/“A11.”
2. Observe polarity: Insert the positive end toward the “+” symbol inside the tray.
3. Clean contacts: Remove oils and dust with a dry, lint-free cloth.
4. Seat firmly: Close the battery door completely to maintain pressure.
5. Test range: Verify the remote or device works at normal distances.

Care, Storage, and Safety

• Store at room temperature in original packaging.
• Do not carry loose cells with keys or coins (short-circuit risk).
• Remove the battery if storing the device long-term to reduce leakage risk.
• Keep away from children and pets; dispose or recycle responsibly.

Maximizing Performance

• Avoid accidental button presses (e.g., in pockets), which drain the cell.
• Keep contact surfaces clean for consistent signal strength.
• Reseat the battery and check the door latch if range seems weak.

Troubleshooting

• Intermittent operation: Clean contacts; confirm the correct code (MN11 vs. MN27/MN21).
• No response: Re-check polarity and inspect for worn buttons or cracked housings.
• Short runtime: Very frequent use, extreme temperatures, or a misaligned contact can increase draw.

FAQs

Is MN11 rechargeable?

No. It is a primary alkaline chemistry and should not be recharged.

Can I substitute MN21 (A23)?

No. MN21 is 12V with different dimensions; using it may damage the device.

What devices use MN11?

Primarily select car security/keyless remotes and specialty controls that explicitly specify MN11/A11.

Summary

Duracell’s MN11 (A11) delivers compact 6-volt power for specialty remotes and instruments. Match the exact code, install carefully, and keep contacts clean to maintain reliable activation and day-to-day convenience.