General
- Battery type: Primary lithium coin cell
- Chemical system: Lithium / manganese dioxide, Li/MnO₂
- IEC designation: CR2032
- Nominal voltage: 3.0V
- Rechargeable: No
- Shape: Round coin cell
Capacity and Performance
- Typical capacity: Approximately 210–240mAh, depending on the manufacturer and test conditions.
- Standard discharge current: Approximately 0.2mA.
- Maximum continuous and pulse current vary by brand and temperature.
- Capacity is normally measured down to an end voltage of about 2.0V under a light load.
Physical Specifications
- Diameter: 20.0mm
- Height/thickness: 3.2mm
- Weight: Approximately 2.8–3.2g
- Flat positive and negative terminals
- Polarity is marked on the top of the cell.



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