Button Cell Battery Silver SR44 / 1.55V / Ø11.6×5.4mm / 145mAh

Silver oxide button cell SR44 provides a nominal voltage of 1.55 V with a compact diameter of 11.6 mm and height of 5.4 mm. With a rated capacity of 145 mAh, this battery is designed to supply stable voltage and consistent performance for small precision devices. The chemistry and construction aim to deliver low self-discharge and long shelf life, making it suitable for stored spare batteries and devices that require reliable, steady power over time.

Advantages

The SR44 silver oxide cell offers stable output voltage throughout most of its discharge cycle, improving the accuracy of precision instruments. Its compact button form factor allows easy fit in recessed battery holders commonly used in watches, calculators and small electronic modules. Manufactured to maintain capacity in low-drain and intermittent-use applications, this battery type is favored for devices where predictable performance and long shelf life are important.

Suitable for

• Wristwatches and timepieces
• Calculators and small office electronics
• Medical instruments and hearing devices with compatible size
• Laser pointers, remote controls and small sensors
• Replacement in devices specifying SR44 / 1.55 V button cells

Key specifications

• Chemistry: Silver oxide
• Nominal voltage: 1.55 V
• Diameter: 11.6 mm
• Height: 5.4 mm
• Rated capacity: 145 mAh
• Cell type: Button / coin
• Typical applications: Low-drain and intermittent-load devices

How to use

Install the SR44 battery in the device's battery compartment observing correct polarity; the flat positive side is normally marked and should match the device's positive contact. Ensure contacts are clean and free from corrosion before inserting the cell. For devices with snap-in or spring contacts, press gently until the cell seats securely. Do not force the battery into a compartment that appears too small or deformed. When replacing batteries, dispose of the spent cell according to local regulations for battery recycling.

Usage recommendations

Store unused SR44 silver oxide cells in a cool, dry place away from direct sunlight and heat sources. Avoid mixing new and used batteries in the same device. If a device will not be used for an extended period, remove the battery to prevent potential leakage and contact damage. Follow device manufacturer guidance for battery replacement intervals in precision instruments and medical devices.