5 ms·

10-13x better then

• Gibbon1 3y ago
  Basically if you figure a EB battery weighs 1000 lbs and 10 gallons of gas plus the tank weighs 75lbs. Gets a lot better when you include the weight of a gasoline engine plus transmission vs an inverter and electric motor. The difference there is a few hundred lbs. Take away is even what seems like small improvements in power density saves a lot of weight. Increase the density by 10% and you shave 90lbs off the battery and reduce the cars weight by 4%. Your gain is more than the reduction of the weight of the battery because cascading reductions in the weight of the cars structural elements.
  • drtgh 3y ago
    The torque required for an electric vehicle to climb a slope quickly drains the battery (if the electric motor can climb it, and if the refrigeration can manage the temperature rise along the climbing time [hill, road, etc; constant torque]). Combustion engines have a high torque, and these variables should be included in the equation. IMHO, it should be mandatory to include in the electric vehicle specification the range with a 14-20% of slope/gradient[1], including the speed. [1] although it does exist some ways with 30% of slope, some wicked garages included.