So I was at the office today, and my car was parked outside for approx 5 hours.. so when I decided go home, everything was fine.. i got the "Battery is Heating " warning..and so the wh/km was at about 400, ( normal with the weather ).. but then I went through a drive thru for a coffee, and noticed a sudden HUGE surge in the Wh/km - to over 600!.. it literally went OFF THE CHARTS !.. see below images.. it stayed like for a good 5-10 minutes, later it dropped back down, and regen came back online.. so i am thinking this was due to battery warming.. but why did take so much energy, and why after after a few minutes of driving ? ( Black arrow represents driving the car for a few minutes before hitting the drive thru ) ( Blue = drive through ) ( Red = the 5-10 minutes of normal driving afterwards ) relevant details : it was about -5C / 23F in Toronto i was driving about 60km/hr - i was NOT speeding or exerting the car in any way Climate control was set to 21.5C -but even when i turned it OFF, nothing changed You can see the pattern of the previous days, as cold weather starts usually cause the 400 Wh/km.. but this time it was way too much.. Anyone have a similar experience ?