4 ms·

But the battery management system automatically disables bad cells so you wouldn’t need to replace an individual cell.

• mc32 5y ago
  People seem to have a different experience. See here: https://electrek.co/2021/09/13/tesla-battery-pack-replacement-repair/ https://electrek.co/2021/09/13/tesla-battery-pack-replacemen...
  • jacquesm 5y ago
    There are different models of Tesla packs in circulation.
• kwhitefoot 5y ago
  That seems really unlikely, or impossible. The 18650 cells in a Tesla Model S are only about twice as big as an AA and they are grouped in parallel blocks that are then connected in series. There does not appear to be any way of isolating a specific cell. Each module has six groups of cells in series, 74 in parallel in each group, giving a module voltage of 22.8 V. See https://www.researchgate.net/figure/Tesla-Model-S-74p6s-Battery-Module-Schematic_fig4_337298547 https://www.researchgate.net/figure/Tesla-Model-S-74p6s-Batt...
  • jacquesm 5y ago
    Newer Tesla batteries are fused per cell, so when a battery dies and it's neighbor cells start dumping charge into it the fuse goes and hopefully that's that. So it's perfectly possible for a single battery to become disconnected from the rest of the pack. But that's not a function of the battery management system, it's purely a safety feature (otherwise the pack would almost certainly go up).