I already placed this question in the forum 3 years ago, but got no reply, so I try again with a new thread :smile:: Can anyone explain what should happen when you press the "Top off" button on the 2.5-Roadster screen? Back then our sales rep in Zurich told me that this would allow to charge the battery to the absolute maximum possible (100% capacity), while a range mode charge would only go to about 96% capacity. He recommended not to use the function if not absolutely necessary. I have followed this advice for more than 3 years. A couple of weeks ago, following a range mode charge, I decided to hit the "Top off" button for the first time to see what 100% means after 3+ years and 66'000 km of driving (for info: It seems I have now a standard range oscillating between 268 km in winter and 282 km back in summer - i.e. the lower the ambient temp., the lower the capacity of my battery). What happened was that the loading process resumed for about 2 minutes, then stopped again. Similar to what happens when you disconnect and re-connect the charging cable after a full charge. The battery-charge status indicator kept indicating about 96% afterwards.