Button cell battery Maxell BAT390.MX1 SR1130SW (Silver Oxide) 1.55V 1 pc

Maxell BAT390.MX1 (SR1130SW) is a single silver oxide button cell with a nominal voltage of 1.55V designed for use in compact electronic devices. The battery provides stable voltage output and consistent discharge characteristics suited to low-drain and moderate-drain applications. Supplied as one piece, this silver oxide cell is intended for devices that require reliable small-format power and long shelf life.

Advantages

This silver oxide button cell delivers a stable 1.55V output and predictable discharge behavior, which helps maintain device accuracy and longevity. Its chemistry offers improved capacity and voltage stability compared with alkaline button cells of similar size. The compact round form factor supports easy installation in watch cases, pocket calculators and small electronic housings, while the low self-discharge rate ensures extended storage life before use.

Suitable for

• Wristwatches and small clocks
• Calculators and small electronic toys
• Key fobs and remote controls
• Medical instruments such as thermometers and glucose meters
• Small sensors, LED indicators and backup memory modules

Key specifications

• Chemistry: silver oxide
• Nominal voltage: 1.55 V
• Cell type: button/coin cell
• Typical applications: low to moderate current drain devices
• Packaging quantity: single cell

How to use

Install the cell following the device manufacturer’s instructions, observing correct polarity (positive side usually marked). Ensure the battery compartment is clean and contacts are free from corrosion or debris before insertion. After replacement, verify device operation and reset date/time or settings if required. Dispose of used button cells in accordance with local battery recycling regulations.

Usage recommendations

Store the battery in a cool, dry place away from direct heat and humidity. Avoid short-circuiting the terminals and keep out of reach of children. For devices with continuous small current draw, replace the battery at regular intervals to prevent leakage and ensure reliable performance.