Maxell SR626SW Battery – Precision Power for Watches and Small Electronics

The Maxell SR626SW battery is a high-quality 1.55V silver oxide button cell designed for low-drain devices that require stable, long-lasting power. Widely used in analog watches, calculators, and precision instruments, the SR626SW is trusted for its consistent voltage output, excellent leak resistance, and dependable shelf life. Its combination of small size, stable performance, and Maxell’s renowned manufacturing standards makes it a go-to choice for timekeeping devices and other compact electronics where accuracy and reliability are essential.

Understanding the Maxell SR626SW Silver Oxide Battery

The SR626SW measures 6.8mm in diameter and 2.6mm in thickness, with a capacity of approximately 28 mAh. Its silver oxide chemistry offers a flat discharge curve, meaning it maintains stable voltage throughout most of its lifespan. This is particularly important for devices like watches and calculators, where even slight drops in voltage can affect performance or accuracy.

Core Specifications

• Model: Maxell SR626SW
• Voltage: 1.55 Volts
• Capacity: Approximately 28 mAh
• Chemistry: Silver Oxide
• Diameter: 6.8 mm
• Height: 2.6 mm
• Weight: Around 0.4 grams
• Operating Temperature: -10°C to +60°C

Why Choose the Maxell SR626SW?

The Maxell SR626SW silver oxide battery for watches offers precise, dependable performance that’s ideal for devices requiring long-term, low-drain energy. Maxell’s strict quality control ensures every battery meets high standards for reliability, shelf life, and leak resistance.

Key Advantages

1. Stable Voltage Output: Maintains consistent 1.55V for accurate device performance.
2. Excellent Shelf Life: Retains capacity for years when stored properly.
3. Leak-Resistant Design: Protects delicate internal components in watches and instruments.
4. Trusted Brand: Manufactured to Maxell’s precise engineering standards.
5. Flat Discharge Curve: Avoids sudden power drops, ensuring uninterrupted operation.

Common Applications for the Maxell SR626SW

Its compact size and stable voltage make the SR626SW suitable for a wide range of small electronics.

1. Watches

Ideal for analog timepieces, the SR626SW provides reliable, long-term power that keeps watches accurate without frequent replacements.

2. Calculators

The long-lasting 1.55V battery for calculators ensures consistent operation for everyday and professional use.

3. Precision Instruments

The reliable SR626SW battery for precision instruments powers devices like calipers, micrometers, and other measurement tools where accuracy is essential.

4. Small Medical Devices

Used in certain hearing aids, thermometers, and diagnostic tools where dependable voltage is critical.

5. Electronic Key Fobs

Powers compact automotive and security remotes with stable, reliable energy.

Performance and Reliability

The Maxell SR626SW is designed for low-drain applications, delivering stable voltage for extended periods. Its silver oxide chemistry provides better performance stability than alkaline equivalents, especially in devices requiring precision.

Voltage Stability

Keeps voltage near 1.55V for most of its life, avoiding dips that could cause devices to malfunction or lose accuracy.

Temperature Endurance

Operates reliably from -10°C to +60°C, making it suitable for a variety of environments.

Comparing the SR626SW to Other Silver Oxide Cells

While similar in diameter to other SR62x models, the SR626SW offers a balance of capacity and size ideal for many watch and instrument applications.

Battery Type	Diameter	Thickness	Voltage	Capacity	Common Uses
SR621SW	6.8 mm	2.1 mm	1.55V	~16 mAh	Watches, calculators
SR626SW	6.8 mm	2.6 mm	1.55V	~28 mAh	Watches, calculators, instruments
SR521SW	5.8 mm	2.1 mm	1.55V	~11 mAh	Watches, small medical devices

Proper Storage and Handling

Store SR626SW batteries in a cool, dry location away from direct sunlight. Keep them in original packaging until use to avoid accidental short-circuiting or discharge.

Replacing an SR626SW Battery

1. Identify the battery compartment in your device.
2. Open carefully using the appropriate tool or latch.
3. Note the polarity before removing the old battery.
4. Insert the new Maxell SR626SW with the correct orientation.
5. Close the compartment securely and test the device.

Environmental Considerations

Recycle SR626SW batteries at approved collection points. Silver oxide cells contain materials that should not be disposed of in household waste.

Conclusion

The Maxell SR626SW is a dependable, long-lasting silver oxide button cell perfect for watches, calculators, and precision instruments. With stable voltage output, excellent leak resistance, and a long shelf life, it’s a trusted choice for devices where accuracy is critical. Whether you need to keep time precisely, calculate without interruptions, or measure with confidence, this battery delivers the performance you can count on.