Hi, this is probably covered elsewhere but I've been unable to find it. My October 2013 Leaf is now at 9 bars, which is fine as it's basically a shopping trolley, but as it's approximately 75% capacity, when I charge to 80%, is it 80% of the original 100% or 80% of the now 75%.? It shows a range of 90km when charged to 80%, and another 15km if I occasionally charge to 100% (eco mode). As the battery is now degraded, would charging it to 100% frequently do any extra harm, or should I keep charging to 80% for the foreseeable future to preserve it as much as possible? Thanks.