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 ...

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 ...

Tesla's 4680 battery aimed to deliver better range, safety, and cost-efficiency. But early results have been underwhelming. Find out what’s happening behind the scenes and why this matters for the EV ...

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 ...

Electric vehicles have plenty of advantages over combustion cars but all of them have an uncomfortable truth sitting under the sheet metal. Engines wear out over time, but the size of their gas tank ...