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Energizer 377/376 Silver Oxide Button Cell Batteries (10 Pack)

£149
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Energizer 377/376 is a 1.55V silver oxide button cell battery supplied in a 10-pack. Each cell measures 6.8mm diameter by 2.6mm height and delivers stable voltage output suited to precision devices including wristwatches, hearing aids, calculators, medical instruments and digital thermometers. The 377 and 376 designations refer to the same cell — different manufacturers use different part numbers for identical specifications.

Silver oxide chemistry provides a flatter discharge curve than alkaline alternatives, maintaining consistent voltage throughout the battery's working life rather than dropping off as the cell depletes. This makes the 377/376 particularly suited to devices requiring precise voltage regulation, such as quartz watch movements and hearing aid circuits. The cells are rated for operating temperatures from -10°C to 60°C.

Each cell carries a leak-resistant seal designed to prevent electrolyte escape during storage and use, protecting delicate device internals from corrosion. The batteries ship with a shelf life of up to 5 years when stored at room temperature, making the 10-pack format practical for stocking spares for multiple devices or for businesses servicing watches and hearing aids. The compact 24mm x 24mm x 5mm pack fits into toolkits, watch repair benches and medical equipment storage.

Specification
Weight (KG) 0.01
Width (mm) 5
Height (mm) 24
Depth (mm) 24
Battery Range Energizer Specialist
Cell Size 377
Cell Composition Lithium
Frequently Asked

Are 377 and 376 batteries the same?

Yes. The 377 and 376 designations refer to the same silver oxide button cell with identical specifications (1.55V, 6.8mm diameter, 2.6mm height). Different manufacturers and regions use different part numbers, but the cells are interchangeable. Other equivalent designations include SR626SW and AG4.

What devices use 377/376 batteries?

Common applications include wristwatches (particularly quartz movements), hearing aids, calculators, digital thermometers, laser pointers, small medical devices and some key fobs. Check your device manual or the existing battery for confirmation before purchase.

How long do these batteries last?

Runtime depends on the device's power draw. In a typical wristwatch the 377/376 typically lasts 2-3 years of continuous use. In higher-drain devices like hearing aids, expect shorter runtime. The batteries carry a 5-year shelf life when stored unopened at room temperature.

Can I use alkaline equivalents instead?

Silver oxide cells provide more stable voltage output than alkaline equivalents (LR626 or AG4 alkaline). For precision devices like watches and medical instruments, silver oxide is strongly recommended. Alkaline alternatives may work but will show voltage drop-off sooner and provide less consistent performance.

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 Energizer 377/376 is a 1.55V silver oxide button cell battery supplied in a 10-pack. Each cell measures 6.8mm diameter by 2.6mm height and delivers stable voltage output suited to precision devices including wristwatches, hearing aids, calculators, medical instruments and digital thermometers. The 377 and 376 designations refer to the same cell — different manufacturers use different part numbers for identical specifications.

    Silver oxide chemistry provides a flatter discharge curve than alkaline alternatives, maintaining consistent voltage throughout the battery's working life rather than dropping off as the cell depletes. This makes the 377/376 particularly suited to devices requiring precise voltage regulation, such as quartz watch movements and hearing aid circuits. The cells are rated for operating temperatures from -10°C to 60°C.

    Each cell carries a leak-resistant seal designed to prevent electrolyte escape during storage and use, protecting delicate device internals from corrosion. The batteries ship with a shelf life of up to 5 years when stored at room temperature, making the 10-pack format practical for stocking spares for multiple devices or for businesses servicing watches and hearing aids. The compact 24mm x 24mm x 5mm pack fits into toolkits, watch repair benches and medical equipment storage.

    Specification
    Weight (KG) 0.01
    Width (mm) 5
    Height (mm) 24
    Depth (mm) 24
    Battery Range Energizer Specialist
    Cell Size 377
    Cell Composition Lithium
    Frequently Asked

    Are 377 and 376 batteries the same?

    Yes. The 377 and 376 designations refer to the same silver oxide button cell with identical specifications (1.55V, 6.8mm diameter, 2.6mm height). Different manufacturers and regions use different part numbers, but the cells are interchangeable. Other equivalent designations include SR626SW and AG4.

    What devices use 377/376 batteries?

    Common applications include wristwatches (particularly quartz movements), hearing aids, calculators, digital thermometers, laser pointers, small medical devices and some key fobs. Check your device manual or the existing battery for confirmation before purchase.

    How long do these batteries last?

    Runtime depends on the device's power draw. In a typical wristwatch the 377/376 typically lasts 2-3 years of continuous use. In higher-drain devices like hearing aids, expect shorter runtime. The batteries carry a 5-year shelf life when stored unopened at room temperature.

    Can I use alkaline equivalents instead?

    Silver oxide cells provide more stable voltage output than alkaline equivalents (LR626 or AG4 alkaline). For precision devices like watches and medical instruments, silver oxide is strongly recommended. Alkaline alternatives may work but will show voltage drop-off sooner and provide less consistent performance.

    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.