394 / SR936SW Watch Battery Replacements

The Battery 394, also known as SR936SW or V394, is a compact 1.55V silver oxide watch battery used in many analogue watches and small precision devices. This category brings together reliable 394 battery options from trusted brands such as Varta and Duracell, making it easier to replace your old cell with the correct equivalent.

What is a 394 SR936SW battery?

A 394 battery is a small silver oxide button cell designed for stable voltage output. It is commonly selected for watches because it delivers consistent performance over its service life. If your old cell is marked 394, SR936SW, D394 or V394, the products in this category are suitable equivalents to compare.

• Voltage: 1.55V
• Chemistry: silver oxide
• Common codes: 394, SR936SW, V394, D394
• Typical use: wristwatches and compact electronic devices

Varta and Duracell 394 watch batteries

When choosing a 394 battery, brand quality matters. Varta V394 and Duracell D394 cells are made for dependable power in precision applications. They are popular replacements when the original battery is labelled Renata 394, SR936SW or another compatible reference. Always check the code on the old battery or the watch manual before ordering.

Silver oxide cells are preferred for watches because they maintain a steady 1.55V output better than many alkaline alternatives. This helps keep quartz movements accurate and reduces the risk of poor performance caused by unstable voltage.

How to confirm compatibility before purchase

Before buying a 394 SR936SW battery, compare the marking on your existing cell with the product name and specifications. The 394 / SR936SW format is typically associated with a button cell size of about 9.5 mm diameter and 3.6 mm height. A correct physical fit is just as important as voltage and chemistry.

Quick ordering checklist

1. Open the watch carefully and read the code printed on the old battery.
2. Look for matching references such as 394, V394, D394 or SR936SW.
3. Choose a trusted brand like Varta or Duracell for consistent performance.
4. Install the new cell with the correct polarity and avoid touching the flat surfaces with bare fingers.

Tip: If your watch stopped suddenly, replacing the battery is often the simplest first step. If the new 394 battery does not restore operation, the watch may need cleaning, contact adjustment or professional service.

At BatteryMarket.bg you can quickly find the right Battery 394 for watches and small electronics. Browse the available Varta and Duracell options above and order the suitable 1.55V SR936SW replacement for your device.