I noticed it before but the battery was bellow 50% so I thought that this is the reason but today with battery at 70% I had it again. At hard acceleration /pedal all the way down/ i got yellow teiangle with exclamation mark on energy dial on my dash and the dial got the orange line up to 300kw/h. I noticed it when the speed past 80, may be 90 mph and it stayed for abot 30 sec after the acceleration was over. Is that normal? Tomorrow I am going to try to replicate it and will make a video to be clear what I am experiencing. The car was parked in garage with 83 F air temperature less than a mile away from this event. This less than a mile was druven easy with 25-30 mph with no hard acceleration at all. The outside temp was 98 F. Disclaimer: I am not driving like fanatic. There is private road where I work with no traffic so no laws was brocken during this event!