Renata Lithium CR1220
The Renata Lithium CR1220 is a 3-volt, non-rechargeable lithium manganese dioxide coin cell battery known for its high reliability and long shelf life, typically used in small electronic devices like watches, calculators, and key fobs.
Key Specifications
- Chemistry: Lithium Manganese Dioxide (Li/MnO₂).
- Voltage: 3V nominal voltage.
- Capacity: Typically 40 mAh (some sources mention 38 mAh).
- Dimensions: 12.5 mm diameter x 2.0 mm height.
- Weight: Approximately 0.8 g.
- Self-Discharge Rate: Less than 1% annually at room temperature (23°C).
- Operating Temperature: Wide range, from -30°C to +70°C (or +85°C according to one source).
- Safety & Compliance: UL-recognized components (File No. MH14002) and environmentally friendly (no toxic substances).
- Shelf Life: Can maintain charge for up to 10 years when stored properly