Introduction
This manual provides essential information for the safe and effective use of the Renata 394 Silver Oxide Button Cell Battery. Designed for precision devices, this battery offers reliable and long-lasting power for applications such as watches and other small electronic devices.
Setup and Installation
The Renata 394 battery is a compact power source requiring careful handling during installation. Always ensure the device is powered off before attempting battery replacement.
- Identify Battery Compartment: Locate the battery compartment on your device. This is typically secured with a small screw or a snap-on cover.
- Remove Old Battery: Carefully remove the old battery, noting its orientation (positive (+) and negative (-) terminals).
- Insert New Battery: Insert the new Renata 394 battery, ensuring the positive (+) side aligns with the positive indicator in the compartment and the negative (-) side aligns with the negative indicator. Incorrect polarity can damage the device or the battery.
- Secure Compartment: Close and secure the battery compartment.

Image: The Renata 394 Silver Oxide Button Cell Battery, shown in its sealed blister packaging, indicating its model number and voltage.
If the device does not power on after installation, re-check the battery orientation and ensure the compartment is properly closed.
Operation
Once correctly installed, the Renata 394 battery will provide consistent power to your device. As a silver oxide battery, it offers a stable discharge voltage throughout its lifespan, which is beneficial for devices requiring precise voltage, such as watches.
The typical lifespan of the battery depends on the power consumption of the device it is powering. For watches, these batteries are known for their long operational periods.
Maintenance and Storage
Proper maintenance and storage can extend the life and ensure the safety of your Renata 394 batteries.
- Storage: Store unused batteries in their original packaging in a cool, dry place, away from direct sunlight and extreme temperatures. Avoid storing batteries near metal objects that could cause a short circuit.
- Handling: Avoid touching the battery terminals with bare hands, as oils and dirt can affect performance. Use non-conductive tools if possible.
- Disposal: Do not dispose of batteries in household waste. Button cell batteries contain materials that require special disposal. Consult your local regulations for proper battery recycling or disposal facilities.

Image: The reverse side of the Renata 394 battery packaging, displaying the expiry date (06/2027) and international symbols for proper recycling and disposal, including the crossed-out wheeled bin indicating not to dispose with general waste.
Always check the expiry date printed on the packaging before use to ensure optimal performance.
Troubleshooting
If your device is not functioning correctly after battery installation, consider the following:
- Device Not Powering On:
- Ensure the battery is inserted with the correct polarity (+/-).
- Check that the battery compartment is securely closed.
- Verify the battery is new and within its expiry date.
- Test the device with another known-good battery if available.
- Intermittent Operation:
- Clean the battery contacts in the device and on the battery with a dry, lint-free cloth.
- Ensure the battery is seated firmly in its compartment.
- Short Battery Life:
- The device may have higher power consumption than anticipated.
- Ensure the battery is stored correctly when not in use to prevent premature discharge.
If issues persist, consult the instruction manual for your specific device or contact the device manufacturer for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Brand | Renata Batteries |
| Model Number | 394 (SR936SW) |
| Battery Cell Composition | Silver Oxide |
| Voltage | 1.55V |
| Battery Capacity | 84 Milliamp Hours |
| Product Dimensions | 2.32 x 1.57 x 0.24 inches |
| Item Weight | 0.6 ounces |
| Recommended Uses | Watch, Small Electronic Devices |
| Manufacturer | Renata |
| Date First Available | August 10, 2011 |
Warranty and Support
For specific warranty information regarding the Renata 394 battery, please refer to the terms and conditions provided by your point of purchase or the manufacturer of the device in which the battery is used. Renata batteries are manufactured to high quality standards, ensuring reliability.
For technical support or inquiries related to Renata products, please visit the official Renata Batteries website or contact their customer service department. If the battery was purchased as part of a device, please contact the device manufacturer for support related to battery replacement or performance within that device.