Duracell Button Cell Battery 1620 1st.

Duracell Specialty 1220 Lithium button cell batteries are made of high purity lithium for reliable and long use of your specialty devices. They are guaranteed for up to 10 years when stored with Duralock Power Preserve technology. This ensures that these lithium button cell batteries are ready for use when you need them. They are intended for use in key chains, small remote controls, scales, wearables, sensors, and sports devices (heart rate monitors, cycling accessories).