3 ms·

I'm confused, what do you mean by "derate the battery", and how would that cause some of the battery to be deadweight? It sounds to me like they're just limiti

• JohnFen 1y ago
  > It sounds to me like they're just limiting the kW output of the pack. That's what he means by derating. Using the battery as if it were specced lower than it is. The deadweight is that you're hauling around a battery that is heavier than it needs to be if it were actually that spec.
• ExoticPearTree 1y ago
  I mean you have a 100kW battery that is limited by the software at 70-80kW. This is what I mean by de-rating. Secondly, a 100kW battery is heavier than a 70-80kW one. If you don’t pony up for the upgrade fee, you carry around all the time probably 50kgs of useless mass. More mass, less mileage.
  • Kudos 1y ago
    There's no additional battery cells, is the 50kg extra cooling or something?
    • ExoticPearTree 1y ago
      OK, let’s try this another way: they could have sold a car with a say 70kW battery. Instead they are selling it with say 100kW battery. Am smaller battery would weigh less than a bigger battery. Because they de-rate the battery via software, you are carrying a bigger battery which weighs more than a smaller battery, while you only get the mileage of a smaller battery. Hence, you have deadweight in your car.
      • dzhiurgis 1y ago
        Oh man all this theorizing and getting units of measurement wrong.