Varta Silver-Oxide Battery SR45 V394 1.55V 67mAh - Silver
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Product Information
Full details
The Varta V394 (SR45) is a high-quality, single-use silver-oxide button cell battery designed for reliable power in small electronic devices. Ideal for watch enthusiasts, calculator users, and owners of various small electronics, its key benefit is its high energy density and minimal self-discharge, ensuring long-lasting performance. A potential caveat is its specialized nature, making it unsuitable for high-drain devices. This guide covers its features, use, and care.
All features
| Colour | Silver |
|---|---|
| Model Part Number | 00394 101 111 |
| Brand | Varta |
Extended Product Information
FAQs
What devices typically use the Varta V394 battery?
The Varta V394 battery is commonly used in watches, calculators, electronic organizers, small toys, key fobs, and certain medical devices like glucose meters.
Is the Varta V394 battery rechargeable?
No, the Varta V394 is a single-use (primary) silver-oxide battery and is not designed to be recharged. Attempting to recharge it can be dangerous and damage the device.
What is the shelf life of the Varta V394 battery?
Due to its minimal self-discharge characteristics, the Varta V394 battery has a long shelf life, often several years, when stored properly in its original packaging.
How do I know if I need a V394 battery?
Check the device's manual or the markings on the old battery. The V394 is often equivalent to batteries designated as SR45, SR936SW, or RW33.
What does 'Silver-Oxide' mean for performance?
Silver-oxide technology provides a high, stable voltage and excellent energy density, meaning the battery can deliver consistent power for longer periods compared to some other battery types.
Can I use a different button cell battery if I can't find a V394?
It is best to use the exact battery specified for your device. While some button cells have similar dimensions, their voltage and chemistry can differ, potentially affecting performance or damaging the device. Always prioritize using the V394 or its direct equivalent (e.g., SR45).
Troubleshooting
Device does not power on after battery replacement
Ensure the new Varta V394 battery is inserted with the correct polarity (+/-). Check that the battery is making good contact with the terminals. Verify that the battery is not a counterfeit and is the correct V394/SR45 type.
Device operates intermittently or weakly
The battery may be low on charge or faulty. Try replacing it with another new Varta V394 battery. Ensure the device's contacts are clean and free of corrosion.
Battery does not fit into the compartment
Double-check that you are using the correct battery model (V394/SR45). Ensure there is no debris in the battery compartment. Do not force the battery; it should fit snugly.
Pros and Cons
Pros
- Long-lasting power due to high energy density.
- Stable voltage output for consistent device performance.
- Excellent shelf-life due to minimal self-discharge.
- Compact and lightweight design.
- Reliable for sensitive electronic applications.
Cons
- Single-use battery, not rechargeable.
- May not be suitable for high-drain devices.
- Specific size may not be interchangeable with other button cells.
- Requires careful handling during installation.
Setup, Compatibility & Care
Compatibility: The Varta V394 is specifically designed to replace batteries with IEC indication SR 45, or other indications like RW 33/SR 936 SW. Always check your device's manual or the existing battery for the correct V394 or SR45 designation before replacement.
Setup:
- Ensure the device is powered off.
- Gently open the device's battery compartment, often found on the back or side.
- Note the orientation (+/-) of the existing battery.
- Carefully remove the old battery. Use a non-metallic tool if necessary to avoid short circuits.
- Insert the new Varta V394 battery, matching the correct positive and negative orientation.
- Close the battery compartment securely.
- Power on the device to confirm it is working.
Care:
- Store unused batteries in their original packaging in a cool, dry place away from direct sunlight and metal objects.
- Avoid exposing batteries to extreme temperatures.
- Never attempt to recharge single-use batteries like the V394, as this can be dangerous.
- Dispose of used batteries responsibly according to local regulations.