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Duracell MN27 12V Alkaline Battery (A27/27A) - Single Pack

£199
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Duracell MN27 is a 12V alkaline battery designed for small electronic devices requiring higher voltage in a compact form factor. Also sold under the codes A27, 27A, V27A and 8LR732, this cylindrical cell measures approximately 28mm in length and 8mm in diameter, making it compatible with car key fobs, garage door remotes, wireless doorbells, pet collar transmitters and some security alarm sensors.

The MN27 delivers 12V from a stack of eight individual 1.5V alkaline cells housed in a single sealed cylinder. This construction provides stable voltage output across the battery's discharge curve, which is important for devices that need consistent power to maintain signal transmission or operation. The alkaline chemistry suits low-to-moderate drain applications where the device draws intermittent current rather than continuous high loads.

Duracell rates the MN27 for reliable performance across temperatures from -20°C to 54°C, which covers most residential and automotive environments including cold winter mornings in a parked car or hot summer dashboards. The battery has a shelf life of several years when stored in cool, dry conditions, making it practical to keep spares for emergency replacement when a car key fob stops responding or a remote control loses range.

This pack contains one MN27 battery. The battery weighs 20 grams and fits devices marked for A27, 27A, V27A, MN27, GP27A, L828, 8LR732 or similar 12V miniature alkaline cells. Most users find the MN27 lasts 1-3 years in a car key fob depending on how frequently the buttons are pressed, and 6-18 months in higher-drain devices like wireless doorbells or pet collar transmitters.

Specification
Weight (KG) 0.02
Battery Range Duracell Specialist
Cell Size MN27
Cell Composition Alkaline
Frequently Asked

What devices use the MN27 battery?

Car key fobs, garage door openers, wireless doorbells, remote controls for gates and security systems, pet collar transmitters, and some medical devices. Check your device's battery compartment or manual for the code — if it lists A27, 27A, V27A, GP27A, L828 or 8LR732, the Duracell MN27 will fit.

How long does the MN27 last?

In a car key fob with moderate use, typically 1-3 years. In higher-drain devices like wireless doorbells or pet collars that transmit frequently, expect 6-18 months. Shelf life when stored unused is several years.

Can I use rechargeable batteries instead?

No. The MN27 is a 12V alkaline primary cell. There is no widely-available rechargeable equivalent in this form factor and voltage. Devices designed for MN27 batteries expect 12V alkaline chemistry.

What's the difference between MN27, A27 and 27A?

They are different manufacturer codes for the same battery specification. Duracell calls it MN27, other brands use A27 or 27A. The physical size, voltage and chemistry are identical.

Shipping & Returns

Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

To arrange a return, call us on 020 8149 5199 or use our contact page.

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    Description

    The Duracell MN27 is a 12V alkaline battery designed for small electronic devices requiring higher voltage in a compact form factor. Also sold under the codes A27, 27A, V27A and 8LR732, this cylindrical cell measures approximately 28mm in length and 8mm in diameter, making it compatible with car key fobs, garage door remotes, wireless doorbells, pet collar transmitters and some security alarm sensors.

    The MN27 delivers 12V from a stack of eight individual 1.5V alkaline cells housed in a single sealed cylinder. This construction provides stable voltage output across the battery's discharge curve, which is important for devices that need consistent power to maintain signal transmission or operation. The alkaline chemistry suits low-to-moderate drain applications where the device draws intermittent current rather than continuous high loads.

    Duracell rates the MN27 for reliable performance across temperatures from -20°C to 54°C, which covers most residential and automotive environments including cold winter mornings in a parked car or hot summer dashboards. The battery has a shelf life of several years when stored in cool, dry conditions, making it practical to keep spares for emergency replacement when a car key fob stops responding or a remote control loses range.

    This pack contains one MN27 battery. The battery weighs 20 grams and fits devices marked for A27, 27A, V27A, MN27, GP27A, L828, 8LR732 or similar 12V miniature alkaline cells. Most users find the MN27 lasts 1-3 years in a car key fob depending on how frequently the buttons are pressed, and 6-18 months in higher-drain devices like wireless doorbells or pet collar transmitters.

    Specification
    Weight (KG) 0.02
    Battery Range Duracell Specialist
    Cell Size MN27
    Cell Composition Alkaline
    Frequently Asked

    What devices use the MN27 battery?

    Car key fobs, garage door openers, wireless doorbells, remote controls for gates and security systems, pet collar transmitters, and some medical devices. Check your device's battery compartment or manual for the code — if it lists A27, 27A, V27A, GP27A, L828 or 8LR732, the Duracell MN27 will fit.

    How long does the MN27 last?

    In a car key fob with moderate use, typically 1-3 years. In higher-drain devices like wireless doorbells or pet collars that transmit frequently, expect 6-18 months. Shelf life when stored unused is several years.

    Can I use rechargeable batteries instead?

    No. The MN27 is a 12V alkaline primary cell. There is no widely-available rechargeable equivalent in this form factor and voltage. Devices designed for MN27 batteries expect 12V alkaline chemistry.

    What's the difference between MN27, A27 and 27A?

    They are different manufacturer codes for the same battery specification. Duracell calls it MN27, other brands use A27 or 27A. The physical size, voltage and chemistry are identical.

    Shipping & Returns

    Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

    Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

    To arrange a return, call us on 020 8149 5199 or use our contact page.