Varta Silver oxide watch battery V362 / SR721SW 1.55 V
Product information
The Varta V362, internationally known as SR721SW, 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 an optimised capacity of 21 mAh, it ensures maximum accuracy and protects your valuable 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: Optimised capacity and minimal self-discharge for years of operation
- High leakage safety: Maximum protection for your valuable and delicate watch movement
- Tested quality: Reliable energy from one of the leading manufacturers
Precision energy for high-quality watches
The Varta V362 was specially designed for use in analogue and digital quartz watches. Its cell chemistry is optimised for low, constant power consumption, which is typical for movements without additional functions. In addition to watches, this battery is also ideal for a wide range of other precision electronic instruments.
Superior silver oxide technology
Compared to conventional alkaline batteries, the silver oxide technology of the V362 offers decisive advantages. The voltage remains stable over almost the entire service life of the battery, which ensures the precision of the device. The high energy density enables a long runtime 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 watch movement
Varta Watch batteries are subject to the strictest quality controls to ensure consistently high performance and maximum safety. The high-quality workmanship and sealing of the V362 cell offers reliable protection against leakage and thus protects the sensitive movement from damage. Trust in tested quality for your valuable devices.
Characteristics
| Model | Varta V362 / SR721SW |
| Technology | Silver oxide zinc (low drain) |
| Size | SR721SW / 362 |
| Rated voltage (V) | 1.55 |
| Capacity (mAh) | approx. 21 |
| Dimensions (Ø x H, mm) | approx. 7.9 x 2.1 |
| Weight (g) | approx. 0.4 |
| Rechargeable | No |
FAQs about the Varta V362 watch battery
What does the designation SR721SW mean?
The international IEC designation provides information about the battery. "S" stands for silver oxide, "R" for the round design, "721" for the dimensions (7.9 mm x 2.1 mm) and the "SW" at the end indicates a "low drain" version. This is specially optimised for devices with low and constant power consumption, such as wristwatches.
Is this battery compatible with the designation SR58SW?
The Varta 362 corresponds to the internationally standardised IEC designation SR721SW. The designation SR58SW is not standardised. Please check the number on your old battery. If it says 362 or SR721SW, this is the correct and suitable replacement.
What is the difference between a V362 (SR721SW) and a V361 (SR721W)?
Both are high-quality silver oxide batteries of the same size. However, the V362 is a "low drain" version specially optimised for the low, constant current requirements of simple wristwatches, where it offers maximum efficiency. The V361 (SR721W) is designed as a "high drain" version for devices with higher power consumption (e.g. watches with lighting).
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 municipal recycling centres to ensure environmentally friendly recycling.
| Capacity: | 0.021Ah |
|---|---|
| Tension: | 1,55V |
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