I'd suggest checking Tavarishs' secondary channel as well.
He had a talk with "V engineering" in UK, who happened to have redesigned the main P1 drive battery (in cooperation with the people who designed the original battery). The original battery seems to fail a lot.
Rich used parts from the original (now bankrupt) manufacturer, just a little bit less capacity. And even though he hacks things together, he does amazing work.
Btw. other manufacturers offer Li-based batteries as well, and those are thousands as a replacement part as well. Multiply by factor 3 for "supercar"
