Free Delivery on all orders over £99*

Energizer 379 Silver Oxide Button Cell Batteries (10 Pack)

£149
The RRP is the manufacturer's recommended retail price of the item.
Limited Stock
We are an Independent UK Company
Price match. Found it cheaper? Contact us
Trade Discount Available
Description

The Energizer 379 is a 1.55V silver oxide button cell battery supplied in a 10-pack. The battery measures 24mm diameter by 5mm height and uses silver oxide chemistry to deliver stable voltage output across the battery's discharge cycle, making it suitable for devices that require consistent power rather than tolerance for voltage drop.

Designed for watches, keyless entry systems, medical devices such as glucose meters and hearing aids, compact calculators and digital thermometers, the 379 maintains a flat discharge curve until the battery is nearly depleted. This contrasts with alkaline button cells, which show gradual voltage decline from the start. The stable output means devices calibrated to operate within a narrow voltage range continue to function correctly throughout the battery's life.

The leak-resistant construction reduces the risk of battery leakage damaging device internals, particularly relevant in watches and medical equipment where replacement intervals can extend to several years. The extended shelf life when stored at room temperature means the batteries remain usable for several years after purchase, allowing bulk buying without concern for degradation in storage. Each cell is individually marked with the 379 designation and positive terminal indicator for correct installation orientation.

Specification
Weight (KG) 0.01
Width (mm) 5
Height (mm) 24
Depth (mm) 24
Battery Range Energizer Specialist
Cell Size 379
Cell Composition Silver Oxide
Frequently Asked

What devices use a 379 battery?

The 379 is commonly used in analogue and digital watches, keyless entry fobs for cars and gates, medical devices including glucose meters and hearing aids, compact calculators and digital thermometers. Any device specifying a 379, SR521SW or AG0 battery will accept this cell.

Can I use an alkaline equivalent instead?

Alkaline button cells of the same physical size exist but deliver declining voltage from the start of their discharge cycle. Devices calibrated for silver oxide's stable 1.55V output may malfunction or show inaccurate readings if powered by an alkaline alternative, particularly medical devices and precision watches.

How long do these batteries last in storage?

Silver oxide button cells maintain charge for several years when stored at room temperature in their original packaging. The exact shelf life depends on storage conditions, but Energizer specialist batteries typically retain usable charge for 3-5 years from manufacture date when kept dry and away from extreme temperatures.

Are these batteries rechargeable?

No. The 379 is a primary (single-use) battery. Attempting to recharge a silver oxide button cell can cause leakage, rupture or venting. Once depleted, the battery should be disposed of according to local battery recycling regulations.

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.

You Might Also Like

Recommended For You

    Our Reviews

    From first click to final installation, our customers share how Niori lights up their spaces. Read their words and envision what’s possible for yours.

    Featured Projects

    Step into our portfolio and see how we transform homes, restaurants, and commercial spaces and more, worldwide. Click here for a closer look at our latest projects.

    Description

    The Energizer 379 is a 1.55V silver oxide button cell battery supplied in a 10-pack. The battery measures 24mm diameter by 5mm height and uses silver oxide chemistry to deliver stable voltage output across the battery's discharge cycle, making it suitable for devices that require consistent power rather than tolerance for voltage drop.

    Designed for watches, keyless entry systems, medical devices such as glucose meters and hearing aids, compact calculators and digital thermometers, the 379 maintains a flat discharge curve until the battery is nearly depleted. This contrasts with alkaline button cells, which show gradual voltage decline from the start. The stable output means devices calibrated to operate within a narrow voltage range continue to function correctly throughout the battery's life.

    The leak-resistant construction reduces the risk of battery leakage damaging device internals, particularly relevant in watches and medical equipment where replacement intervals can extend to several years. The extended shelf life when stored at room temperature means the batteries remain usable for several years after purchase, allowing bulk buying without concern for degradation in storage. Each cell is individually marked with the 379 designation and positive terminal indicator for correct installation orientation.

    Specification
    Weight (KG) 0.01
    Width (mm) 5
    Height (mm) 24
    Depth (mm) 24
    Battery Range Energizer Specialist
    Cell Size 379
    Cell Composition Silver Oxide
    Frequently Asked

    What devices use a 379 battery?

    The 379 is commonly used in analogue and digital watches, keyless entry fobs for cars and gates, medical devices including glucose meters and hearing aids, compact calculators and digital thermometers. Any device specifying a 379, SR521SW or AG0 battery will accept this cell.

    Can I use an alkaline equivalent instead?

    Alkaline button cells of the same physical size exist but deliver declining voltage from the start of their discharge cycle. Devices calibrated for silver oxide's stable 1.55V output may malfunction or show inaccurate readings if powered by an alkaline alternative, particularly medical devices and precision watches.

    How long do these batteries last in storage?

    Silver oxide button cells maintain charge for several years when stored at room temperature in their original packaging. The exact shelf life depends on storage conditions, but Energizer specialist batteries typically retain usable charge for 3-5 years from manufacture date when kept dry and away from extreme temperatures.

    Are these batteries rechargeable?

    No. The 379 is a primary (single-use) battery. Attempting to recharge a silver oxide button cell can cause leakage, rupture or venting. Once depleted, the battery should be disposed of according to local battery recycling regulations.

    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.