RENATA button battery SR48 / 393 Silver Oxide 1.55 V 80 mAh

RENATA SR48 / 393 is a silver oxide button cell with a nominal voltage of 1.55 V and a typical capacity of 80 mAh. The compact coin format provides stable voltage output and low self-discharge, making it suitable for precision low-drain devices that require long shelf life and reliable performance. This cell is compatible with a variety of small electronic instruments where consistent power and compact size are essential.

Advantages

The RENATA SR48 / 393 delivers a stable voltage throughout most of its discharge curve, which helps electronic circuits maintain accurate operation. Its silver oxide chemistry offers better capacity retention and longer storage life compared with alkaline button cells. The small, standardized coin shape ensures straightforward replacement in devices with confined battery compartments.

Suitable for

• Wristwatches and timepieces
• Calculators and small electronic calculators
• Medical devices such as glucometers and thermometers (where specified)
• Small measuring instruments and sensors
• Remote controls for hearing aids, key fobs and similar low-drain applications

Key specifications

• Chemistry: Silver oxide
• Nominal voltage: 1.55 V
• Typical capacity: 80 mAh
• Cell form factor: Button/coin cell
• Typical operating temperature range: suitable for common consumer and medical devices (ambient to moderate temperatures)
• Low self-discharge for extended shelf life

How to use

Replace the spent battery with a new RENATA SR48 / 393 following the device manufacturer's instructions. Ensure correct polarity when inserting the coin cell to avoid damage to the device. Use appropriate tools or tweezers if required to access the battery compartment, taking care to avoid short circuits. Dispose of used button cells in accordance with local regulations for battery recycling and hazardous waste.

Usage recommendations

Store unused cells in a cool, dry place away from metal objects and extreme temperatures. Check device compatibility and consult device documentation if the application has strict safety or regulatory requirements, particularly for medical equipment.