Varta Silver oxide watch battery V384 / SR41SW 1.55 V

The Varta V384, internationally known as SR41SW, is one of the most popular premium silver oxide button cells, specially developed for the precise requirements of high-quality wristwatches and small medical devices. As a specialist in special batteries, Varta guarantees the highest quality and reliability. With its stable voltage of 1.55 V and an optimised capacity of 38 mAh, it ensures maximum accuracy and precise measurement results.

Highlights at a glance

• Premium quality: High-quality silver oxide technology for watches and medical devices
• Extremely stable voltage: Constant 1.55 V for maximum accuracy and measurement precision
• Long service life: Optimised capacity and minimal self-discharge for years of operation
• High leakage safety: Maximum protection for your valuable devices
• Tested quality: Reliable energy from one of the leading manufacturers

Precision energy for watches and medical devices

The Varta V384 is a widely used power source for a variety of analogue and digital quartz watches. Its cell chemistry is optimised for low, constant current consumption. In addition, its high reliability and stable voltage make it a preferred choice for many small medical devices such as digital clinical thermometers, where maximum measurement accuracy is required.

Superior silver oxide technology

Compared to conventional alkaline batteries, the silver oxide technology of the V384 offers decisive advantages. The voltage remains stable over almost the entire life of the battery, which ensures the precision of the device. The high energy density enables a long running time in a very small design. Thanks to the minimal self-discharge, the battery also has an extremely long shelf life.

Efficiency and safety for your devices

Varta batteries are subject to the strictest quality controls to ensure consistently high performance and maximum safety. The high-quality workmanship and sealing of the V384 cell provides reliable protection against leakage and thus protects your sensitive devices from damage. Trust in tested quality.
 

Characteristics

FAQs about the Varta V384 watch battery

What does the designation SR41SW mean?

The international IEC designation provides information about the battery. "S" stands for silver oxide, "R" for the round shape, "41" for the dimensions (7.9 mm x 3.6 mm) and the "SW" at the end denotes a "Low Drain" version. This is specially optimised for devices with low and constant current consumption.

Can I replace an LR41 alkaline battery with this V384?

Yes, this is certainly possible and is a significant upgrade. The V384 (SR41SW) offers a longer service life and much more stable voltage than an LR41 battery. This is particularly important in medical devices such as clinical thermometers to ensure high measurement accuracy.

What is the difference between a V384 (SR41SW) and a V392 (SR41W)?

Both are high-quality silver oxide batteries of the same size. However, the V384 is a "Low Drain" version specially optimised for the low, constant current requirements of watches and thermometers. The V392 (SR41W) is a "High Drain" version designed for devices with higher current consumption (e.g. calculators with sound).

How should this battery be disposed of?

Watch batteries must not be disposed of with household waste. Please take the empty battery to the designated collection points in shops or municipal waste collection centres to ensure environmentally sound disposal.