2019Batteries/Power forum
Long-term storage conditions for lithium-ion batteries
What the thread found
- Lithium-ion batteries should be stored at approximately 40% charge level to minimize degradation over time
- Storing lithium-ion batteries in a fully charged or fully discharged state causes faster cell degradation than intermediate charge levels
- Keeping stored lithium-ion batteries in a cool environment away from direct sunlight helps preserve their condition
Depends on
- The specific method for maintaining 40% charge was not explained in the discussion
- No information provided about storage duration limits or expected capacity loss after one year