Duracell MN11 (A11) 6V Alkaline Battery for Keyless Remotes and Specialty Electronics

The Duracell MN11 (also labeled A11 or 11A) is a compact 6-volt, single-use alkaline battery designed for small transmitters and remotes that need higher voltage in a short, narrow housing. Use this battery only when your device or original cell explicitly lists MN11/A11/11A.

When to Choose It

• Device label or manual lists MN11, A11, or 11A.
• Small RF remote or keyless entry fob needs a 6V cell in a short cylindrical format.
• Intermittent-use electronics where dependable activation is more important than high capacity.

When to Avoid It

• Your device calls for MN21/A23 or MN27/A27 (both 12V), LR1/N (1.5V), AAAA, or coin cells—these are not interchangeable.
• You need rechargeability; MN11 is a primary (non-rechargeable) alkaline cell.

Compatibility and Cross-References

• Common designations: MN11, A11, 11A, E11A.
• Not the same as: MN21/A23 (12V), MN27/A27 (12V), LR1/N (1.5V), CR2/CR123A, or coin/button cells.
• Typical uses: select car alarm remotes, keyless entry transmitters, small RF controls, and certain specialty gadgets that specify MN11/A11.

Specs at a Glance

Expected Runtime

In typical keyless remotes and small transmitters, one MN11 often lasts many months and commonly 1–2 years under moderate use. Heavy daily use, poor contact pressure, or very hot/cold environments shorten life.

Installation (1–2 minutes)

1. Verify the code: MN11/A11/11A on the old battery or device label.
2. Open the battery door carefully; note polarity (+/−) before removal.
3. Clean contacts with a dry, lint-free cloth; avoid solvents.
4. Insert the new cell with the positive end toward the “+” mark.
5. Close the door fully to ensure firm contact; test operation and range.

Performance and Care

• Avoid pocket presses: unintended button holds drain the battery quickly.
• Keep contacts clean and the door latched; poor tension reduces range.
• Store spares in original packaging at room temperature; do not freeze.
• Remove the battery from devices stored long-term to reduce leakage risk.

Troubleshooting

• Intermittent operation: clean contacts, confirm correct battery code, and ensure the door snaps closed.
• No response: recheck polarity; inspect for worn buttons or cracked housings; some remotes may need re-pairing after a battery change.
• Short life: frequent use, stuck buttons, or extreme temperatures increase drain. Measure with a multimeter—fresh cells typically read above 6.0 V open-circuit.

Safety and Disposal

• Do not recharge, crush, or incinerate.
• Keep away from children and pets; small batteries can be a choking hazard.
• Recycle or dispose of according to local regulations.

FAQs

Is MN11 the same as A11 or 11A?

Yes—these are common equivalents for the same 6V size. Always match your device label.

Can I use MN21/A23 or A27 instead?

No. Those are 12V cells with different dimensions. Using them can damage the device.

Is MN11 rechargeable?

No. It is a primary alkaline battery and must not be recharged.

How do I know it’s installed correctly?

Match the “+” on the battery to the “+” inside the compartment, close the door fully, then test at normal range.

What if my remote still doesn’t work?

Check for worn buttons, cracked cases, or the need to re-sync the remote. If issues persist, consult the device manual.

Bottom Line

Choose the Duracell MN11 (A11) when your device calls for a compact 6V battery. Matching the exact code, observing polarity, and keeping contacts clean ensures consistent range and reliable activation.