My 60 has consistently charged to 90% daily, sometimes multiple times a day and this has been ranging in the 175-177 mi range @ 90%. I had my speedo display replaced on Friday and updates software to the latest 6.2. On my first nightly 90% charge, I hit 176 mi and all was good. Last night I charged to 90% (from 48 mi) and it topped off at 171. That seems a pretty extreme drop in 1 day. Any ideas? It has been extremely hot for the area (90's).