Electrovaya supplying Prius Plug-In Kits?"For Li-Ion batteries, you get more cycles, but after two years from the
manufacturing date the capacity drops off. I don't know if Electrovaya
has solved this problem, in the batteries they supply to Hymotion for
the Prius plug-in conversion kit. "
https://groups.google.ca/group/alt.autos.toyota/browse_thread/thread/f20b15127462fec0/9c1e787f714a75f6?lnk=st&q=electrovaya&rnum=9&hl=en#
https://www.hymotion.com/index.htm