Operating temperature of fix lithium is 50-95 degrees.
Question: Can you operate at a lower temperature than 50?
Answer: If the ambient temperature is constant, then yes. If for example you are going into a large industrial fridge at a temperature of 40, and go back to a warehouse where the temperature is 75, condensation would occur. The condensation would be ruin the battery, therefore do not go below 50 degrees in these cases.