Single-use battery Varta V303

The Varta V303 single-use battery is a silver-oxide cell designed for small electronic devices that need stable, long-lasting power. With a nominal voltage of 1.55 V, CE certification and a compact form factor (5.4 mm height, 11.6 mm diameter) this battery delivers reliable performance for precision instruments and everyday accessories while weighing only 2.3 g.

Advantages

Silver-oxide chemistry provides consistent voltage output over the battery's service life and good energy density in a compact size. The Varta V303 is lightweight and sized for direct replacement in watch and small-device compartments. CE certification indicates compliance with relevant safety and quality standards.

Suitable for

• Watches
• Calculators
• Small electronic toys and key fobs
• Medical and precision instruments that accept size 4SR44

Key specifications

• Battery type: Single-use battery
• Battery technology: Silver‑Oxide (S)
• Nominal voltage: 1.55 V
• Dimensions: 5.4 mm height × 11.6 mm diameter
• Weight: 2.3 g
• Battery size(s): 4SR44
• Certifications: CE

How to use

Insert the Varta V303 into the device following the polarity markings and the device manufacturer's instructions. Ensure contacts are clean and free of debris before installation. Replace the battery when device performance drops or when a low-battery indicator appears. Dispose of used batteries according to local regulations for battery recycling.

Recommendations

Store unused batteries in a cool, dry place away from direct heat and sunlight. Do not attempt to recharge single-use silver-oxide cells. Keep out of reach of children and avoid short-circuiting the terminals.