How long does a lithium battery maintain the charge in storage?
user
A typical lithium-ion battery can maintain 95 - 98% of its charge for about two years when stored in a cool, dry place. Be sure to read the manufacturer’s storage instructions for your batteries before using them.
assistant
How long does a lithium battery maintain the charge in storage?
user
That varies a lot depending on the type of lithium battery, its physical condition and the storage conditions.  Batteries retain capacity best when stored at 60°F or lower and voltage may decrease over time.  Most lithium battery charge levels retain 95% of their original capacity over 10 years when stored at 60F. Reconditioning the battery can increase this time to at least 20 years.  Please see this link for more specific information:  https://answers.yahoo.com/question/index?qid=20090717110829AASRLP
assistant
How long does a lithium battery maintain the charge in storage?