Duracell Spec Electro MN27

Compact 12V Power for Specialist Electronics

The Duracell Specialty MN27 is designed specifically for compact electronic devices that require a relatively high voltage from a very small battery.

Despite measuring only around 28mm in length, the MN27 provides:

12V nominal voltage

This makes it especially suitable for wireless transmitters, remote controls, security equipment and other specialist electronic devices.

Its Alkaline Manganese Dioxide – Zn/MnO₂ chemistry provides reliable performance, stable voltage and low self-discharge.

MN27 / A27 / 27A / 8LR732

The same battery format can appear under several different codes depending on the manufacturer of the equipment or replacement battery.

Common equivalent references include:

MN27 / A27 / 27A / 8LR732 / GP27A / V27GA / MS27 / L828 / EL812

Checking these equivalent references can make it easier to identify the correct battery for your equipment.

Always confirm the battery code and voltage specified by the device manufacturer before installation.

Ideal for Yacht & Boat Electronics

Modern yachts contain many small wireless accessories, transmitters and remote-control devices that use specialty batteries.

The Duracell MN27 can be suitable for compatible equipment such as:

• Yacht and vehicle key fobs
• Alarm remote controls
• Security system remotes
• Wireless controllers
• Remote switches
• Wireless doorbells
• GPS trackers
• Small transmitters
• Access-control remotes
• Compact electronic accessories
• Other devices requiring MN27 / A27 batteries

Keeping a spare MN27 onboard can prevent a small discharged battery from making an otherwise functional remote or wireless accessory unusable.

High 12V Output

The defining feature of the MN27 is its high voltage in a compact cylindrical format.

Nominal Voltage

12V

Nominal Capacity

Approximately 20mAh

The MN27 is therefore very different from conventional AA or AAA batteries, despite its compact appearance.

It is designed specifically for devices engineered around a 12V specialty battery.

Alkaline Manganese Dioxide Technology

The Duracell MN27 uses:

Alkaline Manganese Dioxide – Zn/MnO₂

This proven alkaline chemistry provides several useful characteristics:

• Reliable energy delivery
• Stable voltage through much of the battery’s service life
• Low self-discharge
• Long operating life
• Good corrosion resistance
• Wide operating temperature range

These properties make the MN27 particularly suitable for devices that may only be activated occasionally but still need to respond reliably when required.

Low Self-Discharge

Duracell technical data specifies self-discharge of less than approximately:

10% after one year of storage at +20°C

Low self-discharge is especially useful for remote controls, trackers and security accessories, where batteries may remain installed or stored for extended periods.

Up to 5 Years in Storage

Duracell provides an up to 5-year storage guarantee for its Specialty MN27 alkaline battery when properly stored.

This makes the MN27 ideal as an onboard spare.

It can easily be stored in:

• Yacht electronics cabinets
• Spare-parts lockers
• Navigation-area storage
• Crew lockers
• Toolboxes
• Emergency battery kits
• Vehicle storage compartments

A fresh replacement battery can therefore remain available whenever required.

Wide Operating Temperature Range

The Duracell MN27 is designed to operate within approximately:

-10°C to +60°C

Recommended storage temperature is approximately:

5°C to 30°C

This broad operating range provides flexibility across many applications, provided that the electronic device itself is also suitable for the environmental conditions.

Compact & Lightweight

The MN27 combines its 12V output with very compact dimensions.

Typical specifications are:

Length: approximately 27.0–28.2mm
Diameter: approximately 7.6–8.0mm
Weight: approximately 4.9g

This makes it ideal for compact transmitters, small remote-control devices and other electronics where internal space is limited.

Why Choose Duracell Specialty MN27?

Specialty electronics require the correct battery to operate properly.

The Duracell MN27 combines 12V output, compact dimensions, alkaline technology, low self-discharge and reliable Duracell performance.

For yacht owners, captains and crew, it is a useful battery to keep available for remote controls, access systems, alarm accessories and other compatible wireless devices.

Key Benefits

• Trusted Duracell quality
• Specialty alkaline battery
• 12V nominal voltage
• Standard MN27 / A27 format
• IEC designation 8LR732
• Approx. 20mAh nominal capacity
• Compact cylindrical design
• Very lightweight
• Stable voltage performance
• Low self-discharge
• Less than approximately 10% self-discharge after 1 year at +20°C
• Wide operating temperature range
• Up to 5-year storage guarantee
• Ideal for remote controls
• Suitable for alarm and security equipment
• Suitable for GPS trackers
• Useful for yacht and boat electronics
• Convenient single-battery blister

Technical Specifications

Brand: Duracell
Range: Specialty Electronics / Specialty Alkaline
Battery Type: Specialty Alkaline Battery
Model: MN27
IEC Designation: 8LR732
Common Equivalents: A27 / 27A
Other Equivalents: L828, GP27A, V27GA, MS27, EL812
Chemistry: Alkaline Manganese Dioxide – Zn/MnO₂
Nominal Voltage: 12V
Nominal Capacity: Approx. 20mAh
Typical Weight: Approx. 4.9g
Typical Volume: Approx. 1.33cm³
Diameter: Approx. 7.6–8.0mm
Height: Approx. 27.0–28.2mm
Operating Temperature: Approx. -10°C to +60°C
Recommended Storage Temperature: Approx. 5°C to 30°C
Rechargeable: No
Storage Guarantee: Up to 5 years
Packaging: Blister / Card
Quantity: 1 battery
EAN: 5000394023352

Recommended Applications

Suitable for compatible:

• Key fobs
• Alarm remote controls
• Car alarm remotes
• Security systems
• Wireless remote controls
• Remote switches
• Wireless doorbells
• GPS trackers
• Access-control transmitters
• Small electronic transmitters
• Yacht electronics
• Boat accessories
• Devices requiring MN27 / A27 / 8LR732 batteries

Important Compatibility Information

The MN27 is a 12V specialty battery.

It should not be confused with the MN21 / A23, which is also a 12V battery but has different physical dimensions and capacity.

Before installation, check that your device specifically requires:

MN27 / A27 / 27A / 8LR732

or another confirmed equivalent.

Using an incorrect battery type can prevent the equipment from operating correctly.

Storage & Safety

For safe use:

• Install the battery according to the correct polarity.
• Do not attempt to recharge the MN27.
• Do not short-circuit the terminals.
• Do not expose the battery to fire or excessive heat.
• Remove exhausted batteries promptly.
• Keep spare batteries inside their original packaging.
• Store in a cool, dry location.
• Keep batteries away from children.
• Recycle used batteries through an appropriate battery collection point.