IIRC, a lot of the energy use in a plane flight is due to the initial acceleration. So double the capacity is more than double the distance. You can also just u

IIRC, a lot of the energy use in a plane flight is due to the initial acceleration. So double the capacity is more than double the distance. You can also just use a bigger battery when the weight efficiency is better. Amprius is planning to offer a silicon nanowire anode sometime in the next decade it seems, which probably won't double the capacity, but it would be a significant improvement.