Tesla’s 4680 Cells Underperform on Energy, Charge
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- Tesla unveiled its 4680 battery cell at Battery Day five years ago, promising 5× energy, 6× power, and 16% more range.
- Tesla’s 4680 cells deliver lower energy density than the promised specifications, according to data.
- Tesla’s 4680 cells have slower charging performance than expected, per data.
- Tesla’s 4680 cells provide less driving range than the standard cells, per data.
Why it matters: Tesla investors face lower confidence as the 4680 cells fall short, threatening cost savings and range gains for the expanding robotaxi fleet, which could delay revenue growth and increase vehicle costs.
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