Renata Watch Battery - Silver - 377

The Renata 377 (SR626SW) battery is commonly used in analog quartz watches, but can also power small electronic devices like calculators, laser pointers, and small LED lights.

No, the Renata 377 is a primary (non-rechargeable) lithium button cell battery.

Check your watch's manual or the markings on the old battery. The Renata 377 is equivalent to many other codes, but it's best to confirm the exact size and voltage requirement.

It means the battery does not contain mercury, making it safer for the environment and compliant with regulations that restrict mercury content in batteries.

Store them in their original packaging in a cool, dry place, away from direct sunlight and extreme temperatures, until you need them.

Unused button cell batteries like the Renata 377 typically have a long shelf life, often several years, when stored properly.

Ensure the battery is correctly inserted with the positive (+) side facing the correct terminal. Check that the battery compartment is clean and free of debris. Verify the battery is not expired.

Check for proper contact between the battery and the device terminals. Ensure the battery compartment is securely closed. Consider replacing the battery if it is old.

Confirm that the device is not draining the battery due to a malfunction. Ensure you are using the correct battery type for your device. Check for environmental factors like extreme temperatures.