Indeed. Batteries require a BMS that can handle this amount of cells as well and they're quite obscure. In a smaller battery pack I've built every individual cell has a current fuse as well as a thermal fuse that pops at 60 deg C.
Well. That would be the overpriced commercial version. I'm not a fan of Tesla because of their anti repair practices and I'd rather build my own anyway. The learning experience alone makes it worth it.
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