The Ultimate Guide to SR920SW Button Battery: Everything You Need to Know
The SR920SW button battery is a crucial component in many electronic devices, particularly watches. Known for its stable voltage and longevity, this silver oxide battery is an essential part of modern technology. In this guide, we will explore everything about the SR920SW battery, including its equivalents, applications, and how to choose the right one for your needs. We’ll also provide a detailed comparison table to help you make informed decisions.
Comparison of SR920SW Battery Types and Applications
| Battery Type | Voltage | Applications | Equivalent Types |
|---|---|---|---|
| SR920SW | 1.55V | Quartz watches, calculators, medical devices | 370, 371, LR920, AG6, LR921 |
| 371 | 1.55V | Watches, toys, cameras | SR920SW, 370, LR920 |
| 370 | 1.55V | Watches, cameras, electronic devices | SR920SW, 371, AG6 |
| LR920 | 1.5V | Toys, remote controls | SR920SW, 371, AG6 |
| AG6 | 1.5V | Various electronic devices | SR920SW, 370, LR920 |
Understanding the SR920SW Battery
The SR920SW is a silver oxide button battery that provides a nominal voltage of 1.55V. It is commonly found in wristwatches, but its applications extend to calculators, medical devices, and other small electronic gadgets. The battery’s longevity and stable output make it a reliable choice for devices that require consistent power.
Benefits of Silver Oxide Batteries
Silver oxide batteries, including the SR920SW, offer several advantages:
– Stable Voltage: They maintain a consistent voltage output, ensuring reliable performance.
– Long Shelf Life: These batteries typically have a longer shelf life compared to alkaline batteries.
– High Energy Density: They provide more energy in a smaller size, making them ideal for compact devices.
Choosing the Right SR920SW Replacement
When selecting a replacement for the SR920SW battery, compatibility is key. Consider the following factors:
Voltage and Size
Ensure that the replacement battery matches the voltage (1.55V) and size of the SR920SW. Mismatches can lead to device malfunction or damage.
Brand Reputation
Opt for batteries from reputable brands. Companies like Energizer and Rayovac are known for their quality and reliability. Check domains like batterym.com and megabatteries.com for trusted options.
Discharge Characteristics
Different batteries may have varying discharge rates. While some equivalents like the 371 or 370 are commonly used, they may not perform identically to the SR920SW in terms of longevity and power delivery.
Applications of the SR920SW Battery
The SR920SW is versatile and used in various devices. Here are some common applications:
Watches
Wristwatches are the most common devices that utilize the SR920SW battery. Its stable voltage ensures accurate timekeeping.
Medical Devices
Certain medical devices, such as glucometers and hearing aids, also rely on the SR920SW for dependable performance.
Electronics
Small electronics like calculators and remote controls frequently use this type of battery due to its compact size and reliability.
Technical Features Comparison of the SR920SW Battery
| Feature | SR920SW | 371 | 370 | LR920 | AG6 |
|---|---|---|---|---|---|
| Voltage | 1.55V | 1.55V | 1.55V | 1.5V | 1.5V |
| Chemistry | Silver Oxide | Silver Oxide | Silver Oxide | Alkaline | Alkaline |
| Diameter | 9.5 mm | 9.5 mm | 9.5 mm | 9.5 mm | 9.5 mm |
| Height | 2.1 mm | 2.1 mm | 2.1 mm | 2.1 mm | 2.1 mm |
| Common Uses | Watches | Watches | Watches | Toys | Electronics |
Conclusion
The SR920SW button battery is an essential component for many devices, particularly in the watch industry. Its stable voltage, long shelf life, and small size make it an ideal choice for various applications. When looking for replacements, consider the voltage, size, and brand to ensure optimal performance. Always refer to reliable sources like poweringautos.com or onlybatteries.com for quality options.
FAQ
What is an SR920SW battery?
The SR920SW battery is a silver oxide button cell that provides a voltage of 1.55V, commonly used in watches and small electronic devices.
What devices use the SR920SW battery?
It is typically used in quartz watches, calculators, medical devices, and various electronics that require a compact power source.
Can I use a 371 battery instead of an SR920SW?
Yes, the 371 battery is an equivalent replacement for the SR920SW and can be used interchangeably in most devices.
What are the alternatives to the SR920SW battery?
Alternatives include the 370, LR920, and AG6 batteries. However, ensure they meet the voltage and size requirements of your device.
How long does an SR920SW battery last?
The lifespan of an SR920SW battery depends on the device’s power requirements, but it typically lasts several years under normal usage conditions.
Are silver oxide batteries better than alkaline?
Silver oxide batteries like the SR920SW offer more stable voltage output and longer shelf life compared to alkaline batteries, making them preferable for precision devices.
Where can I buy an SR920SW battery?
You can purchase the SR920SW battery from various retailers, including websites like www.walmart.com, megabatteries.com, and walgreens.com.
How do I know if my battery needs replacing?
Signs include your device malfunctioning, a decrease in performance, or if the device no longer turns on.
Is it safe to use a different brand for the SR920SW replacement?
While it’s generally safe to use different brands, it’s crucial to choose reputable brands to ensure compatibility and performance.
What should I do with used batteries?
Always recycle used batteries properly at designated recycling centers to minimize environmental impact.