Li-ion / LiPo Battery Storage and Permanent Capacity Loss

A fully charged Li-ion / LiPo cell is approximately 4.2 volts. Li-ion / LiPo is different from other battery chemistries as it should never be stored fully charged. Li-ion / LiPo should be stored approximately “half full” (40% – 50% of full charge).

Li-ion / LiPo batteries function via a chemical reaction that occurs inside their sealed enclosure. Providing power is a chemical reaction, while the aging/degrading process is another chemical reaction. Chemical reaction doubles its speed for every ten degrees increase of ambient temperature.

Reference:
https://www.zeusbatteryproducts.com/wp-content/uploads/downloads/Lithium_rechargeable_batteries_storage.pdf

See Also:
Battery Packs
Batteries Rechargeable (Secondary)
Battery Shelf Life
Battery Storage and Handling FAQs with Aaron Cunningham from Zeus Battery

Summary

shelf life
lithium
ion
polymer