Varta Silver oxide watch battery V394 / SR936SW 1.55 V

The Varta V394, internationally standardised as SR936SW, is a premium silver oxide button cell that has been specially optimised for the requirements of classic analogue watches. As a "low drain" battery, it is designed for a low and constant energy output, which guarantees an exceptionally long service life. With its stable voltage of 1.55 V and high capacity, it ensures the maximum accuracy of your high-quality timepiece for years to come.

Highlights at a glance

• Premium quality: High-quality silver oxide technology for reliable performance.
• Low drain optimised: Perfect for the low, constant energy requirements of analogue watches.
• Extremely long service life: High capacity ensures a running time of several years.
• Highest accuracy: Stable voltage of 1.55 V ensures the precision of the movement.
• Tested quality: High leakage safety and reliability from Varta.

Precision energy for classic analogue watches

The Varta V394 was developed specifically for use in analogue quartz watches without additional functions such as lighting or alarms. Its cell chemistry specialises in supplying a minimal but constant current over a very long period of time, as is typical for the operation of a mechanical movement. This makes it the ideal and most durable choice for a variety of high-quality ladies' and men's wristwatches.

Reliable silver oxide technology (low drain)

The "Low Drain" technology of the V394 focuses on maximum energy efficiency and extremely low self-discharge. In contrast to "high drain" batteries, which are designed for short-term high power output, everything here is optimised for maximum service life with low load. The silver oxide base guarantees a constant voltage until the end of the service life, preventing the loss of accuracy that can occur with alkaline batteries.

Efficiency and safety with system

Every Varta battery undergoes strict quality controls to guarantee maximum performance and safety. The V394 is optimally protected against leaking thanks to its high-quality construction, which protects your valuable movement from damage. The secure individual packaging also prevents short circuits and protects the cell from environmental influences until use.
 

Characteristics

FAQs about the Varta V394 / SR936SW button cell

What do the designations SR936SW or 394 stand for?

These are designations for the same battery. SR936SW is the international IEC standard. "S" stands for silver oxide, "R" for the round shape, "936" for the dimensions (9.5 mm diameter and 3.6 mm height) and the "SW" indicates a "low drain" battery for watches. The 394 is the specific type number of the manufacturer Varta.

What does "Low Drain" mean and for which watches is this battery suitable?

"Low drain" means that the battery is optimised for low, constant power consumption. It is the ideal choice for classic, analogue wristwatches without energy-intensive additional functions such as dial illumination, stopwatch or alarm tones. In these watches, it achieves the maximum possible service life.

Can I use this battery in a watch with a light or stopwatch?

This is not recommended. A "high drain" battery (with the suffix "W", e.g. V380 / SR936W) is the correct choice for watches with additional functions that require a lot of power for a short time. The use of a low drain battery in such a watch can lead to malfunctions and drastically shorten the life of the battery.

How should this button cell be disposed of?

Button cells must not be disposed of with household waste. Please take the empty battery to the designated collection points in shops or municipal recycling centres to ensure environmentally friendly recycling.