Tesla hasn't improved much on the performance of its 4680 cells, which it now uses in some Model Y variants, including Long Range models built at Giga Berlin. The switch was made quietly, leading to a ...

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 ...

Tesla’s 4680 batteries are missing their mark and trailing competitors across the board. Tesla’s 4680 battery underperforms on energy density, power, and range versus competitors. Real-world charging ...