I know the battery size is 17kWh. In the past I would be able to charge from empty (or zero EV) a good 14.8kWh but lately my EV range has dropped down to 31 and noticed that a full charge from zero is only 13.5kWh I know that cold weather can put a toll on range but why would a full charge be less? Could the software upgrades maybe affected this? Cause it seems like total battery capacity is now less. TIA.