SR920SW coin cell

The SR920SW is a 1.55-volt silver-oxide coin cell used in small electronics. It measures 9.5 millimeters in diameter and about 2.6 millimeters thick, with a weight of roughly 1.4 grams. Common applications include wristwatches, some blood glucose monitors, hearing aids, and other compact devices requiring precise, reliable power in a tiny form factor. Renata presents this model as a high-quality Swiss option for professional replacements.

Renata SR920SW batteries are designed for a long lifespan under normal use, supporting dependable performance in devices that require steady, accurate power delivery. Their silver-oxide chemistry helps maintain consistent voltage over time and resists self-discharge better than many alternatives, making them a preferred choice for daily wearables and small electronics that demand reliable operation.

Check the chemistry, size, and voltage: silver-oxide chemistry, 1.55 volts, 9.5 mm diameter, and 2.6 mm thickness. A sealed design helps prevent rapid self-discharge, and the weight is typically around 1.4 grams. For reliability, confirm the exact model (SR920SW or 371) matches your device’s battery compartment and replacement guidelines, ensuring stable performance and compatibility.

Yes, these coin cells are offered in various pack sizes, including single pieces, bundles of five, and bundles of ten. Choosing a multi-pack can be convenient for devices with multiple timekeeping accessories or for stocking up in a workshop or store. Always verify compatibility with your specific watch or device model before purchasing.

Renata is a Swiss company known for high-quality batteries and precise manufacturing standards. Their coin cells, like the SR920SW, are chosen for reliable power delivery and consistent performance in sensitive devices such as watches and medical monitors. Opting for Renata can help ensure your replacement battery delivers stable operation over time.

Look for an expiry date such as March 2027 on genuine Renata SR920SW coins. An approaching expiry date signals the need to plan a replacement before performance may degrade, ensuring your watches or devices continue to run accurately. Always store spare batteries in a cool, dry place away from direct sunlight to maintain freshness.