CR1220 battery: storage life
CR1220 is a lithium coin cell. Storage life is how long a cell holds power while unused.
This page reports the Energizer United States product page. Other makers and other regional pages publish different figures.
The Energizer product page for the CR1220 says it holds power for 8 years in storage.
Limits of this figure
Energizer Australia lists up to 10 years for some coin cells, and the Energizer lithium coin handbook says 10 years at normal room temperature. Brand and region change the figure.
Source
Energizer, 1220 battery product page (United States). Address: https://energizer.com/product/power/specialty/1220-battery/. Checked 17 October 2026.