Murata CR 2430 battery

Key Specifications

• Nominal voltage: 3.0 V.

• Nominal capacity: approx. 300 mAh (when cutoff ~2.0 V under light load) for the Murata CR2430.

• Standard discharge current: ~0.2 mA (in datasheet spec) under low drain.

• Dimensions: Diameter ≈ 24.5 mm, Height ≈ 3.0 mm

• Weight: ~ 4.4 g (Murata spec) for this size

• Operating temperature: approximately -30 °C to +70 °C for standard version.

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

Features

• High energy density in coin-cell format: With ~300 mAh in this 24.5×3.0 mm size, it offers more capacity than smaller coin cells.

• Stable voltage and long shelf life: Murata emphasises low self-discharge (< 1% per year under normal conditions) and good leakage resistance.

• Good for devices needing reliable standby or backup power: For example, the datasheet cites applications such as memory backup (SRAM/RTC), remote controllers.

• Strong for larger coin-cell uses: Because it’s larger (24.5 mm diameter) than many (20 mm) coin cells, it’s suitable where more capacity or larger physical size is acceptable (e.g., key fobs, sensors, instrumentation).