The Comprehensive Introductions to SR920(370) Battery [FAQ]
SILVER OXIDE BATTERIES
This post will unlock more detailed information on the SR920(370) Battery.
SR920 Overview
SR920 is a popular alkaline and silver-oxide battery, offering high performance in a wide variety of appliances.
SR920 Equivalents
The equivalents for SR920:
SR920W, SR920SW, SR920PW, SR921
SR920 Applications
Digital watches
Bike computers
Heart rate monitors for athletes, etc
SR920 Benefits
Small battery with a high energy density, suitable for small devices
Wide range available
Very reliable performance for precision electronics
Flat discharge curve for stable power until the end of the battery life
No mercury added
Low self-discharge
SR920 Advantages
Technology
The SR920 battery stands out from other types of batteries due to its huge capacity and sustained high power supply till the end of its life cycle. It is also twice as large as an alkaline button cell. Because of the usage of silver, it may cost more than other button cells or coin-type batteries, but the SR920's long life and stability make it a great choice.
Materials
The SR920 employs a negative electrode (anode), a positive electrode (cathode), and an alkaline electrolyte. When compared to other batteries, a silver oxide battery has a higher open circuit potential (1,55V). Its discharge curve is also flatter than that of a conventional alkaline battery.

Discharge Curves
Environment
As a result of our efforts to raise environmental awareness, the SR920 Silver Oxide battery now contains no mercury.
SR920 Dimensions

SR920 Dimensions
Conclusion
It's a silver-oxide battery with a nominal voltage of 1.55 volts (which is often printed on the package), stable voltage, and good.
Is SR920SW the same as SR920W?
The SR920W and SR920SW batteries are the same sizes, however, the SR920W is a high-drain battery while the SR920SW is a low-drain battery.
Are SR920(370) and 371 batteries interchangeable?
In general, SR920(370) batteries can be replaced with SR920SW(371) batteries, although at the cost of a slightly shorter runtime.
Is there a SR920SW(371) watch battery? What is the equivalent of a 371 watch battery?
Yes, the SR920SW(371) watch battery is a low-drain silver-oxide 9.5 x 2.1 mm battery. Its analogues include SR920SW, D371, V371, and other batteries.
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