Murata CR 2032 Battery

Key Specifications

• Nominal Voltage: 3.0 V.

• Nominal Capacity: ~220 mAh (cut-off ~2.0 V) in standard conditions.

• Dimensions: Diameter ≈ 20.0 mm, Height ≈ 3.2 mm.

• Weight: ~3.1 g.

• Chemistry: Lithium Manganese Dioxide (Li/MnO₂) – primary cell (non-rechargeable).

• Operating Temperature Range: Approximately -30 °C to +70 °C (standard type).

• Shelf Life / Storage: Very low self-discharge; Murata claims less than ~1% capacity loss per year at room temp in its coin manganese-dioxide lithium series.

 Features

• High energy density in a small coin form: The 3 V output and 220 mAh capacity (for the size) make it well-suited to compact electronics.

• Stable voltage output: The chemistry and construction allow the voltage to remain relatively steady through most of the discharge cycle, improving reliability for devices needing consistent voltage.

• Long shelf-life + strong leakage resistance: The design emphasizes low self‐discharge and minimal leakage over time, useful for standby/backup applications.

• Wide use case: Commonly used in small electronics like watches, calculators, key fobs, memory backup (RTC), sensors.