goev_no05 hat geschrieben:...If we consider that Kia said they expect the battery to be 70% after 15 years, ...
Kia almost certainly means that the usable capacity of the battery at 15 years will be 70% of the initial usable capacity.
That interpretation allows for greater deterioration each year - 2.5% per year.( Total capacity shrinks from 30.5 to 18.9)
The graph I posted earlier showing battery deterioration may not be an accurate way to compare different car's deterioration.
I did not realise that recuperation energy was included in the cumulative energy counters. Thanks Goev for pointing this out.
Each car may have a different proportion of recuperated energy in one battery cycle depending on a host of driving factors that I didn't include. This may or may not be important. I too don't trust the values are correct, but lets keep an eye on them and we'll see how it goes and after a while we can get some proper statistics.