As known, rechargeable li-polymer battery can be stored at 20 ℃ for more than six months, this is because its self-discharge rate is very low, and most of the capacity can be restored.
Li-polymer battery exists the phenomenon of self-discharge, if the battery voltage below 3.6V for a long time, it will lead to battery internal structure breakdown because of the excessive discharge, so that reduce battery life.
How to store li-polymer battery when we need long time storage ?
1. We’d best power the battery every 3 to 6 months, charge the voltage at 3.8 ~ 3.9V (li-polymer battery best storage voltage is 3.85V), capacity at 40% -60%, should not be filled.
2. The battery should be stored in a dry environment of 4 ° C to 25 ° C
3. Keep away from heat, and do not be placed in direct sunlight.