Maxell SR920SW Battery – High-Precision Power for Watches and Instruments

The Maxell SR920SW battery is a premium 1.55V silver oxide cell designed for devices that demand stable, long-lasting energy. Its size and chemistry make it ideal for precision watches, measuring tools, and small electronic instruments. With Maxell’s quality manufacturing, the SR920SW delivers a consistent voltage output, excellent leak resistance, and impressive shelf life, ensuring optimal performance in every application. Whether used in luxury timepieces or professional tools, this battery offers reliability and accuracy you can trust.

Understanding the Maxell SR920SW Silver Oxide Battery

Measuring 9.5mm in diameter and 2.05mm in height, the SR920SW is a versatile, low-drain battery perfect for slim devices where precision is essential. Its silver oxide chemistry ensures consistent voltage throughout its life cycle, a critical factor for accuracy in timekeeping and measuring applications.

Core Specifications

• Model: Maxell SR920SW
• Voltage: 1.55 Volts
• Capacity: Approximately 42 mAh
• Chemistry: Silver Oxide
• Diameter: 9.5 mm
• Height: 2.05 mm
• Weight: Around 0.9 grams
• Operating Temperature: -10°C to +60°C

Why Choose the Maxell SR920SW?

The Maxell SR920SW silver oxide watch battery is valued for its ability to deliver precise voltage over a long period. It’s designed to power low-drain devices without sudden drops in performance, making it ideal for timekeeping accuracy and measurement reliability.

Key Advantages

1. Consistent Voltage: Maintains stable 1.55V output.
2. Durable Construction: Built to withstand long-term use without leaks.
3. Compact Design: Fits slim and lightweight devices.
4. Long Shelf Life: Stores well without losing capacity quickly.
5. Brand Reliability: Backed by Maxell’s manufacturing excellence.

Common Applications for the Maxell SR920SW

Its balance of size, capacity, and stability makes the SR920SW suitable for many precision electronics.

1. High-End Watches

The long-lasting 1.55V battery for precision watches ensures accurate timekeeping in both classic and modern designs.

2. Measuring Instruments

The reliable SR920SW battery for measuring instruments powers calipers, micrometers, and other tools requiring stable voltage.

3. Medical Devices

Often used in digital thermometers and compact diagnostic devices.

4. Small Electronics

Ideal for calculators, remote controls, and slim gadgets.

Performance and Reliability

Maxell’s SR920SW excels in low-drain devices, ensuring long replacement intervals while maintaining performance consistency. Its silver oxide chemistry delivers better stability compared to alkaline button cells.

Voltage Stability

Remains near 1.55V for most of its lifespan, avoiding the gradual drop common in alkaline alternatives.

Temperature Performance

Operates effectively between -10°C and +60°C, suitable for both everyday and professional environments.

Comparison: SR920SW vs SR927SW

While similar in diameter, the SR927SW is slightly thicker, offering a higher capacity for devices that can accommodate it.

Battery Type	Diameter	Height	Voltage	Capacity	Common Uses
SR920SW	9.5 mm	2.05 mm	1.55V	~42 mAh	Watches, instruments
SR927SW	9.5 mm	2.7 mm	1.55V	~55 mAh	Watches, calculators

Storage and Handling Tips

Keep SR920SW batteries in their original packaging in a cool, dry place. Avoid storing them near moisture, extreme heat, or conductive materials.

How to Replace an SR920SW Battery

1. Use the appropriate tool to open the device compartment.
2. Note the polarity before removing the old battery.
3. Insert the new Maxell SR920SW correctly.
4. Close the compartment securely and test the device.

Environmental Responsibility

Recycle SR920SW batteries at approved facilities to minimize environmental impact. Do not dispose of silver oxide cells in household waste.

Conclusion

The Maxell SR920SW battery offers the perfect blend of precision, durability, and long-lasting performance for watches, instruments, and compact electronics. With stable voltage, excellent leak resistance, and a slim profile, it delivers reliable energy where accuracy matters most. Whether powering a luxury timepiece or a professional measuring tool, the SR920SW ensures uninterrupted performance in a small but powerful package.