Varta Silver oxide watch battery V303 / SR44SW 1.55 V

The Varta V303, internationally known as SR44SW, is a premium silver oxide button cell that has been specially developed for the precise requirements of high-quality wristwatches. As a specialist in watch batteries, Varta guarantees the highest quality, reliability, and an extremely long service life. With its stable voltage of 1.55 V and a high capacity of 155 mAh, it ensures maximum accuracy and protects your valuable watch movement.

Highlights at a glance

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

Precision energy for high-quality watches

The Varta V303 was specially designed for use in analogue and digital quartz watches. Its cell chemistry is optimised for low, constant current consumption as is typical for watch movements. In addition to watches, this battery is also ideal for a wide range of other electronic precision instruments where a constant power supply is essential for accurate measurement results.

Superior silver oxide technology

Compared to conventional alkaline batteries, the silver oxide technology of the V303 offers decisive advantages. The voltage remains stable for almost the entire battery life, ensuring the precision of the device. The high energy density allows for a long runtime in a very small size. Thanks to minimal self-discharge, the battery also has an extremely long shelf life.

Efficiency and safety for your watch movement

Varta watch batteries are subjected to the strictest quality controls to ensure consistently high performance and maximum safety. The high-quality workmanship and sealing of the V303 cell provide reliable protection against leakage and keep the delicate watch movement safe from damage. Rely on tested quality for your valuable devices.
 

Battery features

FAQs about the Varta V303 watch battery

What does the designation SR44SW mean?

The international IEC designation provides information about the battery. "S" stands for silver oxide, "R" for the round shape, "44" for the dimensions, and "SW" at the end denotes a "low drain" version. This is specially optimized for devices with low and constant current consumption, such as wristwatches.

Can I replace an LR44 alkaline battery with this V303?

Yes, this is possible in almost all cases and is a significant upgrade. The V303 (SR44SW) offers a longer service life and a more stable voltage, which improves the accuracy of your watch. For high-quality watches, the use of a silver oxide battery such as the V303 is expressly recommended.

What is the difference between a V303 (SR44SW) and a V357 (SR44)?

Both batteries are silver oxide cells of the same size. The V303 (SR44SW) is a "low drain" cell for the low, constant current demand of watches. The V357 (SR44) is a "high drain" cell for devices that require more current for short periods, such as calculators with a display or electronic toys.

How should this watch 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 the municipal recycling centres to ensure environmentally friendly recycling.