Stoaty said:
edatoakrun said:
Seven years ago, The LEAF was (and still is) a far superior BEV for most buyers, for having the "better" conductive battery cooling design.
My "better" 2011 Leaf lost over 30% capacity in 6 years. By contrast, the 2013 Tesla Model S I recently purchased for $43,000 has lost about 5% of original capacity...
From AVTA test results, it looks like the liquid cooled Tesla packs in the B class BEVs, on average required
~30% more Wh per mile driven than the LEAFs, and suffered
~6% pack degradation over one year and ~12k miles.
The B packs degradation rate is somewhat better than The LEAFs (or most all of the other BEVs tested) but how much of the improved retention of capacity was due to active cooling, and how much was due to the reduced number of charge/discharge cycles provided by the B's much larger packs (and also by limiting the drivers' access to a lower percentage of the total pack capacity ?) remains unknown.
Unfortunately, no one (to my knowledge) has ever conducted independent testing of any Tesla BEVs, in order to determine accurate battery degradation rates.
https://avt.inl.gov/vehicle-button/2015-mercedes-b-class