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Energizer CR2012 3V Lithium Coin Cell Battery - 1 Pack

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

The Energizer CR2012 is a 3V lithium coin cell battery measuring 20mm diameter and 1.2mm thickness, designed for compact electronics requiring stable low-drain power. The lithium chemistry provides consistent voltage output across the battery's lifespan, avoiding the gradual voltage drop typical of alkaline cells in precision devices.

Common applications include wristwatches, fitness trackers, key fobs, remote controls, glucose monitors, pedometers and hearing aid accessories where space is limited and long shelf life matters. The CR2012 sits between the thinner CR2016 and thicker CR2025 in the Energizer coin cell range, fitting devices specified for exactly 1.2mm height. The child-resistant blister pack keeps the battery sealed until use, preventing accidental discharge or ingestion.

Lithium coin cells hold charge for up to 10 years in storage at room temperature, making them suitable for emergency devices, backup power and seasonal equipment that sits unused for months at a time. The stable 3V output from lithium chemistry means devices maintain accurate timekeeping or measurement throughout the battery's life, rather than drifting as voltage drops.

Specification
Weight (KG) 0
Battery Range Energizer Specialist
Cell Size CR2012
Cell Composition Lithium
Frequently Asked

What devices use a CR2012 battery?

The CR2012 fits watches, fitness trackers, key fobs, remote controls, glucose monitors, pedometers and other compact electronics specified for a 20mm diameter, 1.2mm thick coin cell. Check your device manual or the existing battery for the correct size code.

How long does a CR2012 last?

Battery life depends on the device's power draw. In a watch or fitness tracker drawing microamps, a CR2012 typically lasts 1-3 years. In storage the battery holds charge for up to 10 years.

Can I use a CR2016 or CR2025 instead?

CR2016, CR2012 and CR2025 all provide 3V and share the same 20mm diameter, but differ in thickness (1.6mm, 1.2mm, 2.5mm respectively). A CR2012 will not fit a device designed for a CR2025, and a CR2016 may rattle in a CR2012 holder. Use the size your device specifies.

Is the packaging child-resistant?

Yes. The blister pack meets child-resistant standards to prevent accidental ingestion. Coin cell batteries are a choking and ingestion hazard for young children and should be stored out of reach.

Shipping & Returns

Free worldwide delivery

Free worldwide delivery on all orders over £99. International orders for third-party brand products may be subject to an additional courier surcharge based on volumetric weight, particularly on larger lighting fixtures — if a surcharge applies, our team will email you with the amount before dispatch and you can proceed or cancel for a full refund. See full delivery terms.

Returns

30-day returns window from delivery. As all our products are electrical or lighting goods, returned items must be inspected and recertified by a qualified electrician before resale — the cost of this inspection (25–40% of the item value) is deducted from your refund. Customers pay return shipping. Made-to-order, special-order and clearance items cannot be returned. See full returns policy.

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    Description

    The Energizer CR2012 is a 3V lithium coin cell battery measuring 20mm diameter and 1.2mm thickness, designed for compact electronics requiring stable low-drain power. The lithium chemistry provides consistent voltage output across the battery's lifespan, avoiding the gradual voltage drop typical of alkaline cells in precision devices.

    Common applications include wristwatches, fitness trackers, key fobs, remote controls, glucose monitors, pedometers and hearing aid accessories where space is limited and long shelf life matters. The CR2012 sits between the thinner CR2016 and thicker CR2025 in the Energizer coin cell range, fitting devices specified for exactly 1.2mm height. The child-resistant blister pack keeps the battery sealed until use, preventing accidental discharge or ingestion.

    Lithium coin cells hold charge for up to 10 years in storage at room temperature, making them suitable for emergency devices, backup power and seasonal equipment that sits unused for months at a time. The stable 3V output from lithium chemistry means devices maintain accurate timekeeping or measurement throughout the battery's life, rather than drifting as voltage drops.

    Specification
    Weight (KG) 0
    Battery Range Energizer Specialist
    Cell Size CR2012
    Cell Composition Lithium
    Frequently Asked

    What devices use a CR2012 battery?

    The CR2012 fits watches, fitness trackers, key fobs, remote controls, glucose monitors, pedometers and other compact electronics specified for a 20mm diameter, 1.2mm thick coin cell. Check your device manual or the existing battery for the correct size code.

    How long does a CR2012 last?

    Battery life depends on the device's power draw. In a watch or fitness tracker drawing microamps, a CR2012 typically lasts 1-3 years. In storage the battery holds charge for up to 10 years.

    Can I use a CR2016 or CR2025 instead?

    CR2016, CR2012 and CR2025 all provide 3V and share the same 20mm diameter, but differ in thickness (1.6mm, 1.2mm, 2.5mm respectively). A CR2012 will not fit a device designed for a CR2025, and a CR2016 may rattle in a CR2012 holder. Use the size your device specifies.

    Is the packaging child-resistant?

    Yes. The blister pack meets child-resistant standards to prevent accidental ingestion. Coin cell batteries are a choking and ingestion hazard for young children and should be stored out of reach.

    Shipping & Returns

    Free worldwide delivery

    Free worldwide delivery on all orders over £99. International orders for third-party brand products may be subject to an additional courier surcharge based on volumetric weight, particularly on larger lighting fixtures — if a surcharge applies, our team will email you with the amount before dispatch and you can proceed or cancel for a full refund. See full delivery terms.

    Returns

    30-day returns window from delivery. As all our products are electrical or lighting goods, returned items must be inspected and recertified by a qualified electrician before resale — the cost of this inspection (25–40% of the item value) is deducted from your refund. Customers pay return shipping. Made-to-order, special-order and clearance items cannot be returned. See full returns policy.