Synergy CR1220 3V Lithium Battery

The Synergy CR1220 Lithium Coin Cell is a high-capacity replacement battery that's commonly found in calculators, heart rate monitors, remote starters, thermometers, and other tiny electronic devices. This small size battery is made up of Lithium Manganese Dioxide chemistry that not only supplies the cell with the high voltage required for high-performance devices but also has a very low self-discharge rate, extending the battery's shelf life.