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Energizer 386/301 Silver Oxide Button Cell Batteries (10 Pack)

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

The Energizer 386/301 is a silver oxide button cell battery delivering 1.55V output for watches, calculators, medical instruments and small precision electronics. Each battery uses silver oxide chemistry rather than alkaline, providing stable voltage throughout the discharge curve — the voltage remains consistent until the battery is nearly depleted, rather than dropping gradually from the start.

Supplied as a 10-pack, the 386/301 fits devices requiring SR43, SR43W, SR43SW, SR1142, V386, D386, 606, 280-13, SB-A1, RW42 or 301 cell sizes (check your device manual for compatibility). The cell diameter is 11.6mm with a height of 4.2mm, and each battery weighs approximately 1g. The silver oxide construction gives these batteries a longer service life than equivalent alkaline button cells in constant-draw applications such as analogue watches.

Silver oxide cells maintain charge when stored, with a shelf life of several years when kept at room temperature in the original packaging. The leak-resistant seal minimises the risk of corrosion inside the device compartment. Energizer rates these batteries for operating temperatures between -10°C and 60°C, covering most indoor and body-worn applications.

Specification
Weight (KG) 0.01
Battery Range Energizer Specialist
Cell Size 386
Cell Composition Silver Oxide
Frequently Asked

What devices use 386/301 batteries?

Analogue watches, digital calculators, small medical devices (glucometers, thermometers), laser pointers, small LED torches, and some hearing aids. The 386/301 is also sold under reference codes SR43, SR1142, V386 and 280-13 depending on manufacturer.

How long do these batteries last?

Service life depends on the device and usage pattern. In a typical analogue watch drawing 5-10 microamps, a 386/301 can last 2-3 years. In higher-draw devices the lifespan is shorter. Silver oxide cells provide stable voltage for most of their service life, then drop off sharply when depleted.

Can I use these instead of alkaline button cells?

Yes, if the voltage matches. Silver oxide 386/301 cells provide 1.55V, which is slightly higher than the 1.5V nominal rating of alkaline equivalents. Most devices tolerate this difference. Silver oxide cells maintain more consistent voltage and generally last longer in constant-draw applications.

How should I store spare batteries?

Keep them in the original blister packaging at room temperature, away from metal objects that could short-circuit the cells. Silver oxide batteries retain charge for several years when stored correctly.

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 386/301 is a silver oxide button cell battery delivering 1.55V output for watches, calculators, medical instruments and small precision electronics. Each battery uses silver oxide chemistry rather than alkaline, providing stable voltage throughout the discharge curve — the voltage remains consistent until the battery is nearly depleted, rather than dropping gradually from the start.

    Supplied as a 10-pack, the 386/301 fits devices requiring SR43, SR43W, SR43SW, SR1142, V386, D386, 606, 280-13, SB-A1, RW42 or 301 cell sizes (check your device manual for compatibility). The cell diameter is 11.6mm with a height of 4.2mm, and each battery weighs approximately 1g. The silver oxide construction gives these batteries a longer service life than equivalent alkaline button cells in constant-draw applications such as analogue watches.

    Silver oxide cells maintain charge when stored, with a shelf life of several years when kept at room temperature in the original packaging. The leak-resistant seal minimises the risk of corrosion inside the device compartment. Energizer rates these batteries for operating temperatures between -10°C and 60°C, covering most indoor and body-worn applications.

    Specification
    Weight (KG) 0.01
    Battery Range Energizer Specialist
    Cell Size 386
    Cell Composition Silver Oxide
    Frequently Asked

    What devices use 386/301 batteries?

    Analogue watches, digital calculators, small medical devices (glucometers, thermometers), laser pointers, small LED torches, and some hearing aids. The 386/301 is also sold under reference codes SR43, SR1142, V386 and 280-13 depending on manufacturer.

    How long do these batteries last?

    Service life depends on the device and usage pattern. In a typical analogue watch drawing 5-10 microamps, a 386/301 can last 2-3 years. In higher-draw devices the lifespan is shorter. Silver oxide cells provide stable voltage for most of their service life, then drop off sharply when depleted.

    Can I use these instead of alkaline button cells?

    Yes, if the voltage matches. Silver oxide 386/301 cells provide 1.55V, which is slightly higher than the 1.5V nominal rating of alkaline equivalents. Most devices tolerate this difference. Silver oxide cells maintain more consistent voltage and generally last longer in constant-draw applications.

    How should I store spare batteries?

    Keep them in the original blister packaging at room temperature, away from metal objects that could short-circuit the cells. Silver oxide batteries retain charge for several years when stored correctly.

    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.