I have a Bosch Nyon computer and after charging the battery I very often get a range (in eco) of +/- 230, 220 km which is adjusted downwards by 1/3 after 1 km. When I don't have this high range after charging, I arrive on destination with more range then at the start. Planning a trip is very difficult, I have no idea how far I'll get. Even after 6 months of use every day is different in range (on the same roads in similar conditions). I wonder if some of you have the same experience and what was done about it? Is there a battery or engine-problem or is the Nyon itself the problem?