Single-use battery Varta Primary Silver Button 389

The Varta Primary Silver Button 389 is a single-use button cell battery using Nickel-Oxyhydroxide (NiOx) technology. It provides a nominal voltage of 1.55 V and compact dimensions (11.6 mm diameter, 3.05 mm height), designed for small electronic devices that require stable, long-lasting power.

Advantages

Innovative sealing technology ensures highest leakage resistance, while fully automatic production lines maintain a constant voltage level. Precise manufacturing methods result in a low self-discharge rate, and the use of high-quality raw materials contributes to extended running time.

Suitable for

• Watches
• Calculators
• Hearing devices (where specified)
• Small medical devices and measuring instruments
• Key fobs and small electronic toys

Key specifications

• Brand: Varta
• Model / MPN: 389
• Type: Single-use button cell
• Chemistry: Nickel-Oxyhydroxide (NiOx)
• Nominal voltage: 1.55 V
• Dimensions: 11.6 mm diameter × 3.05 mm height
• EAN: 4008496273584

How to use

Insert the Varta Primary Silver Button 389 into the battery compartment with correct polarity as indicated by the device manufacturer. Ensure contacts are clean and free of debris before installation. Do not attempt to recharge, disassemble, heat, or short-circuit the cell. Replace with the same type and size when the device indicates low battery.

Recommendations

Store unused batteries in a cool, dry place away from metal objects and extreme temperatures. Dispose of used batteries according to local regulations and recycling programs. Keep out of reach of children and consult device documentation for compatibility, especially for medical or hearing devices.