Duracell 364 SR621SW Watch Battery - Silver Oxide

This battery is primarily used in small electronic devices requiring stable voltage, such as wristwatches, small calculators, and some specialized medical instruments. It's identified by codes like 364, SR621SW, D364, AG1, and SR60.

SR621SW is the international standard (IEC) designation for a silver oxide button cell with specific dimensions and electrochemical properties. 364 is a common manufacturer or industry reference number for the same battery type. They are interchangeable.

The lifespan depends heavily on the device's power consumption. In a standard watch, it can last from 1 to 3 years. The battery's shelf life (when unused) is typically several years, thanks to its silver oxide chemistry.

No, the Duracell 364 SR621SW is a primary (single-use) battery and is not designed to be recharged. Attempting to recharge it can be dangerous and damage the battery or device.

Due to their silver oxide content, these batteries should be disposed of responsibly. Check your local municipal guidelines for battery recycling or take them to designated battery collection points, often found at electronics stores or waste management facilities.

While an AG1 alkaline battery might fit physically, silver oxide batteries (like SR621SW/364) provide a more stable voltage output over their lifespan. Using an alkaline equivalent in a precision device like a watch may result in less accurate timekeeping or a shorter battery life. It's always best to replace with the specified silver oxide type.

1. Check Polarity: Ensure the battery is inserted with the correct positive (+) and negative (-) orientation. 2. Verify Battery Type: Confirm that the 364/SR621SW is the correct battery for your device. 3. Check Contacts: Ensure battery contacts in the device are clean and free from corrosion. Gently scrape them if necessary. 4. Device Fault: If the battery is correctly installed and new, the issue might be with the device itself.

1. Battery Age: Ensure the battery is fresh stock; older batteries can have reduced life. 2. Device Drain: The device may have a fault causing higher power consumption than normal. 3. Incorrect Battery: Using an incorrect battery type for the device can lead to rapid depletion, even if it fits.

1. Low Battery: The battery might be nearing the end of its life, and voltage is dropping. 2. Watch Movement Issue: The problem could be with the watch's internal mechanism, not the battery. Consider professional inspection. 3. Environmental Factors: Extreme temperatures can affect battery performance and watch accuracy.