Varta Silver oxide watch battery V393 / SR48W 1.55 V

The Varta V393, internationally standardised as SR48W, is a high-performance premium silver oxide button cell designed for use in devices with high energy requirements. Thanks to its greater height, this "High Drain" battery offers a particularly high capacity and endurance. With its stable voltage of 1.55 V, it is the optimum energy source for complex wristwatches, calculators and other sophisticated small electronic devices.

Highlights at a glance

• Premium quality: High-quality silver oxide technology for reliable performance.
• High drain optimised: Ideal for devices with high, short-term energy requirements.
• High capacity: Particularly long runtime thanks to increased height.
• Stable voltage: Constant 1.55 V for precise function and measurement accuracy.
• Tested quality: High leakage safety and reliability from Varta.

Powerful in a wide range of applications

The Varta V393 is the perfect choice for devices that require more energy than a standard button cell can supply. It is used in multifunctional wristwatches with chronograph, illumination and alarm, in scientific calculators, small electronic games and various medical devices. Its high capacity and ability to deliver high current pulses guarantee long and reliable operation.

Reliable silver oxide technology (High Drain)

The silver oxide technology of the V393 ensures a stable voltage over the entire service life of the battery. This is crucial for the accurate functioning of watches and measuring devices. The "High Drain" version has been specially developed to cope with high current peaks without voltage drop. Compared to alkaline batteries, it offers a significantly longer service life and a higher reliability, especially in high-quality devices.

Efficiency and safety with a system

Every Varta battery undergoes strict quality controls to ensure maximum performance and safety. The V393 is optimally protected against leakage thanks to its high-quality construction, which protects your valuable devices from damage. The secure individual packaging also prevents short circuits and protects the cell from environmental influences until it is used.
 

Characteristics

FAQs about the Varta V393 / SR48W button cell

What do the designations SR48W or 393 stand for?

These are designations for the same battery. SR48W is the international IEC standard, with "S" standing for silver oxide, "R" for the round shape, "48" for the dimensions (7.9 mm diameter and 5.4 mm height) and "W" for "High Drain". The 393 is Varta's specific type number.

What is the difference to an LR48 or AG5 battery?

The main difference is in cell chemistry. The V393 (SR48W) is a silver oxide battery with a very stable voltage, making it ideal for watches and measuring devices. LR48 and AG5 are alkaline batteries whose voltage drops during use. For precise and valuable devices, the silver oxide variant is always recommended for reliable function.

Can I also use a V393 in devices that require an SR48SW (Low Drain)?

Yes, that is easily possible. A High Drain battery like the V393 works perfectly in a device that only requires a small amount of current. Conversely, no Low Drain battery should be used in a device that requires high current peaks, as this can result in malfunctions.

How should this button cell be disposed of?

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