Uniross CR1220 lithium coin cells deliver 38 mAh at 3V in a 12.5mm diameter, 2.0mm profile — 52% more capacity than the CR1216 in the same 12mm footprint at a 0.4mm increase in cell height. When the 12mm battery compartment is fixed and greater runtime or a reduced replacement schedule is the objective, the CR1220 is the direct upgrade specification that requires no housing redesign. It is specified in wristwatches, compact medical devices, and IoT sensor nodes where extended service intervals reduce field maintenance cost.
| battery-type | CR1220 |
|---|---|
| chemistry | Lithium Manganese Dioxide (Li-MnO₂) |
| nominal-voltage-v | 3V |
| typical-capacity-mah | 38 mAh |
| continuous-current-max-ma | 2 mA |
| pulse-current-max-ma | 5 mA |
| max-dimensions-mm | ø12.5 x 2.0 mm |
| weight-approx-g | 0.8 g |
| shelf-life | 5 Years |
| working-temperature-c | -20°C to +60°C |
