iPhone Battery Storage Instructions
1. Lithium-ion batteries should be stored in a cool, dry, ventilated
environment, stay away from source of ignition and high temperatures.
2. Storage environment conditions: relative humidity is 65±20% RH,
recommended storage temperature: 15°C~35°C.
Short-term storage (within 1 month), the battery should be placed in an environment of -10 ° C ~ 45 ° C;
Medium-term storage (within 3 months) , the battery should be placed in the environment -10 ° C ~ 35 ° C;
Long-term storage (more than 3 months), the battery should be placed in the environment of -10 °C ~30 °C;
The recommended storage temperature is 20 °C during transportation.
3. Storage voltage and power: voltage 3.75V~3.95V, power 40%~70%. While the battery has not been used for a long time, the battery may be in an over-discharged status due to self-discharge. And over-discharge would lead to low battery performance or loss of function. To keep the battery high performance, the battery should be charged regularly (at least once every 3 months) and maintain the voltage between 3.75V and 3.95V.