3.69 GBP
Duracell Watch 392/384 Button Cell Battery
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Duracell Watch 392/384 Button Cell Battery
The Duracell Watch 392/384 is a high‑performance button cell battery designed specifically for wristwatches, keyless entry systems, and other small electronic devices that require a reliable 1.5 V power source. Its compact size (7.9 mm diameter) makes it an ideal fit for the most space‑constrained applications while delivering consistent energy output over extended periods.
Key Technical Specifications
- Voltage: 1.5 V nominal, ensuring compatibility with standard watch circuits and many other low‑power devices.
- Capacity: Approximately 45 mAh, providing a balance between longevity and physical size.
- Chemistry: Silver‑oxide (SR736SW) or alkaline variants are available, offering slightly different discharge characteristics suited to various device requirements.
- Dimensions: 7.9 mm diameter × 1.5 mm height, matching the standard 392/384 form factor used in a wide range of watches and small electronics.
- Packaging: Typically sold as a single unit or in blister packs for easy storage and replacement.
Design Features That Enhance Performance
The Duracell 392/384 battery incorporates several design elements that contribute to its reliability:
- Stable Voltage Output: The silver‑oxide chemistry maintains a steady voltage throughout most of the discharge cycle, reducing the risk of sudden power drops in sensitive devices.
- Low Self‑Discharge Rate: Compared to many alkaline alternatives, this battery retains its charge for longer periods when not in use, making it suitable for watches that are worn intermittently.
- Robust Construction: The sealed cell design protects against moisture and mechanical stress, ensuring consistent performance even in demanding environments.
Applications Across Industries
The versatility of the Duracell 392/384 battery extends beyond traditional wristwatches. Its compact size and reliable power output make it suitable for:
- Keyless Entry Systems: Many modern car key fobs and electronic door locks use button cells that require a stable 1.5 V supply.
- Medical Devices: Small medical instruments, such as glucose meters or blood pressure monitors, often rely on button cell batteries for portability.
- Consumer Electronics: Remote controls, small sensors, and portable gaming devices benefit from the battery’s low self‑discharge characteristics.
- Industrial Sensors: Compact environmental monitoring equipment can use this battery to power low‑current circuits over extended periods.
Comparative Advantages Over Other Button Cells
When evaluating button cells for critical applications, several factors come into play. The Duracell 392/384 offers distinct advantages:
- Consistent Energy Delivery: Silver‑oxide chemistry provides a flatter discharge curve compared to alkaline batteries, ensuring devices receive adequate power throughout the battery’s life.
- Long Shelf Life: With a typical shelf life of 10 years or more, this battery is ideal for devices that may remain unused for extended periods before activation.
- High Reliability: Duracell’s manufacturing standards guarantee minimal variation between units, which is crucial for safety‑critical applications such as medical devices.
Installation and Replacement Guidelines
Proper installation ensures optimal performance and longevity. Follow these steps when replacing a Duracell 392/384 battery:
- Power Off the Device: Always disconnect or power down the device before opening the battery compartment to avoid short circuits.
- Remove the Old Battery Carefully: Use a small flathead screwdriver or a dedicated battery removal tool to gently pry out the old cell without damaging the contacts.
- Insert the New Battery Correctly: Align the positive (+) side of the Duracell 392/384 with the corresponding contact in the device. The battery’s polarity is critical for proper operation.
- Secure the Compartment Cover: Once the new battery is seated, close the compartment and ensure it locks securely to prevent accidental opening during use.
- Test the Device: Power on the device to confirm that the new battery is functioning correctly. If the device does not operate, double‑check the polarity and seating of the battery.
Environmental Considerations
The Duracell 392/384 button cell is designed with environmental responsibility in mind:
- Recyclable Components: The battery’s casing and internal components can be recycled through appropriate electronic waste programs, reducing landfill impact.
- Low Toxicity: Unlike some other chemistries that contain hazardous materials, the silver‑oxide formulation used in this battery has a lower environmental toxicity profile.
Conclusion
The Duracell Watch 392/384 Button Cell Battery stands out as a reliable, high‑quality power source for a wide array of small electronic devices. Its stable voltage output, low self‑discharge rate, and robust construction make it an excellent choice for applications where performance consistency is paramount. Whether you are maintaining a classic wristwatch or powering a modern keyless entry system, this battery delivers the dependable energy supply that these devices demand.
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