Five years after Tesla (TSLA) unveiled its 4680 battery cell at Battery Day with promises of 5x the energy, 6x the power, and 16% more range, the data tells a very different story. Tesla’s homemade ...

A Tesla supplier has written down nearly 99% of its supply contract. The contractor was originally meant to supply components for Tesla's 4680 battery. It now comes to a close with just $6,800 in ...

For years, one aspect of Tesla Inc.’s business has been growing outside the public eye, its revenue soaring even as the company’s electric car sales sputtered and stalled. Now analysts wonder whether ...