Single-use button battery Duracell 389/390, Silver‑Oxide 1.5V, 1 pc

Duracell 389/390 is a single-use button battery that uses Silver‑Oxide chemistry to deliver a nominal voltage of 1.5 V. Supplied as a single cell, this compact coin battery is designed for devices that require a stable low-current power source in a small package. The Silver‑Oxide construction provides consistent voltage during discharge and a reliable shelf life typical of primary silver‑oxide cells.

Advantages

This Duracell silver‑oxide button battery offers stable output voltage throughout its service life, low self-discharge for extended storage, and a compact form factor suitable for slim devices. The chemistry provides good performance in low-drain applications and consistent operation over the expected lifetime of the cell. Supplied as 1 pc, it is ready for immediate replacement of worn or depleted coin cells.

Suitable for

• Wristwatches and timepieces
• Calculators and small electronic gadgets
• Car key fobs and remote controls
• Small medical devices (e.g., glucometers, hearing aids where specified)
• Memory backup for small electronics and configuration storage

Key specifications

• Battery type: single-use button/coin cell
• Chemistry: Silver‑Oxide (S)
• Nominal voltage: 1.5 V
• Quantity: 1 piece per package
• Form factor: compact coin/button cell suitable for low-drain devices

How to use

Observe device manufacturer instructions and correct polarity when installing the battery. Clean the contact area if required and insert the cell into the battery compartment with the correct orientation. After replacement, close the compartment securely and test the device function. Dispose of used batteries in accordance with local regulations for battery recycling or hazardous waste; do not incinerate or puncture the cell.

Recommendations

Store in a cool, dry place away from direct sunlight and metal objects. Keep out of reach of children and pets. Check device manual to confirm compatibility with a 1.5 V silver‑oxide button cell before use. For devices that require frequent battery changes or continuous high current, consider checking manufacturer guidance for alternate battery types.