3 ms·

The Tesla Model 3 can charge at up to 250 KW on a 75KWh battery. That does drop significantly at higher charge levels, but the battery in a van like this should

• Retric 6y ago
  In normal driving 100KW is plenty for regenerative breaking. 300KW = 400HP which is heavy acceleration for most cars below 70MPH.
  • fragmede 6y ago
    Heavy acceleration... or a heavy vehicle slowly. F = MA and all that. Tesla's cars are all very heavy for their class though I'm not sure how they compare to a half loaded UPS truck. (On average, a truck is between fully loaded and empty, with emphasis on trying to improve the efficiency in the average case, with an empty truck as the degenerate case.)
    • jsight 6y ago
      My point is that 300 KW is ~400 HP. I can't imagine that these trucks are always stopping vastly more quickly than they accelerate, so this ought to be able to enough to get the majority of the energy, especially taking into account that the regenerative braking is not 100% efficient to begin with. It just doesn't seem like the issue of being able to disappate the energy with regenerative brakes would be a real problem with a full EV delivery vehicle. I think the people pointing to it as an issue are thinking of either different battery tech or hybrid delivery vehicles that had much smaller batteries (and thus lower peak regen).
      • BlackNitrogen 6y ago
        This weird claim that evs don't work out in practice because they can't regen is just the latest example of FUD or extreme misunderstanding of the market. Just like people said it was impossible to make a compelling ev, that you could never go a long way, that you could never charge it fast, this latest claim is just silly. Teslas since 2012 (S and later) have had great recharging ability when slowing down. It's not 100%, nothing can be.
    • deleted 6y ago
      [deleted]
    • Retric 6y ago
      UPS trucks have either 165 or 195 HP, so it’s still significantly faster than they accelerate. Even 18 wheelers generally have ~500 HP or less