very small declines of displayed full charge range,
So is it common knowledge how the range shown on the IC is calculated? From my experience and what I have seen of others', this range figure really is a kind of dream figure. At first I assumed (like my other ev's) this range would reflect my driving style, recorded ambient temperature, maybe averaged for current trip counter distance. Then I read / saw that it just shows pretty much the same figure at a certain % battery soc. In fact, just like an ICE gas gauge, taking nothing into account of my driving style or tyre pressures, hills etc. The range on the energy display seems possibly different in that it is at least trying to link this journey, and actual energy remaining in the battery to the particular journey I am on.
Makes no sense at all to me to show a range figure that really does not try to take reality into account. On a cold day, if my battery (eq. gas tank) shrinks and my range is reduced, I should see a reduced range somewhere.
Over winter, the IC range display on my Renault drops to 130 miles (40kwh battery). In summer, it creeps up to over 200 miles which ties in with the 5 miles per kwh that is also reported. Over winter the mpkwh drops to 3.5 all of which makes sense and gives me a clear picture of what I can expect from the car as long as I keep driving in a similar was as usual.