According to manual the vehicle should be plugged in all the time to allow for battery conditioning (temperature control) for below freezing and above 95F. However, there are circumstances where the power is off or the vehicle is in a place where there is no available power while the temperature is outside the range (say Northern Territories in Canada, Minnesota and Upper Peninsula in Michigan). Does the battery provide the power to maintain the heating/cooling battery fluid required to keep it at optimal temperature when wall power is not available and the car is idle for long periods of time (one or more days)?. There must be some Volt specification sheet somewhere clarifying this issue but I do not seem to find one. Common sense says that GM must have addressed this circumstance when designing the battery conditioning system.