I got my new Q5 hybrid at the beginning of August 2022 when it was fairly warm. When I was in EV mode there was a kick when accelerating hard. Now it is cold I am losing range, about 20%, but the kick has gone. I have only had the drive select in 'auto' mode. The charge time for an empty battery has always been about 2 hours on a 7KW home charger. I just wonder if I have a battery cell fault but there are no error conditions.