Button cell battery Maxell BAT397.MX1 SR726SW 1.55V silver oxide

Maxell BAT397.MX1 SR726SW 1.55V silver oxide button cell is a compact primary battery designed for small electronic devices that require a stable voltage and long shelf life. Its silver oxide chemistry provides consistent output, making it suitable for precision instruments where voltage stability is important. This single cell is intended as a replacement battery for devices with low to moderate power consumption and intermittent use.

Advantages

The silver oxide chemistry delivers a steady 1.55V nominal voltage and a flat discharge curve, which helps maintain consistent device performance until the end of service life. Its small cylindrical button form factor ensures compatibility with a wide range of watches, calculators and medical devices. The battery is single-use and designed for reliable operation in low-drain and intermittent applications, offering predictable behaviour in precision instruments.

Suitable for

• Wristwatches and timepieces
• Calculator and small office electronics
• Medical devices such as glucose meters and thermometers
• Remote controls and keyless entry fobs with low power draw
• Small sensors and measurement tools

Key specifications

• Chemistry: Silver oxide
• Nominal voltage: 1.55 V
• Cell type: Button/coin cell
• Intended use: Primary (non-rechargeable) battery for low-drain devices
• Typical discharge behaviour: Flat voltage profile for stable output
• Size category: Small button cell suitable for compact housings

How to use

Install the cell with correct polarity, matching the positive and negative markings in the device battery compartment. Ensure the contact surfaces are clean and free of corrosion before insertion. Replace with a fresh cell when device performance declines or when the manufacturer’s low-battery indicator appears. Do not attempt to recharge the cell; it is intended for single-use applications. Dispose of used batteries according to local regulations for battery recycling or hazardous waste.

Usage recommendations

Store unused cells in a cool, dry place away from direct sunlight and heat sources. Avoid mixing new and used batteries or combining different chemistry types in the same device. For medical or precision devices, replace the cell with the same type to preserve measurement accuracy and device reliability.