A major link in Tesla’s 4680 battery supply chain has just snapped. South Korean battery material supplier L&F Co. announced today that the value of its massive supply deal with Tesla has been slashed by over 99%, signaling a catastrophic drop in demand for the automaker’s in-house battery cells.

 

This is arguably the strongest evidence yet that Tesla’s 4680 program, and the vehicle that relies on it, the Cybertruck, is in serious trouble.