Isn't that good for aviation? Makes it relatively less expensive to carry reserve energy you don't expect to use, don't have to pay the weight cost during takeoff when weight costs the most energy because you just charged the battery and once you're at cruising speed more weight is just neutral momentum.
Probably the least convenient thing would be if you had to land and take off again somewhere without recharging.
Probably the least convenient thing would be if you had to land and take off again somewhere without recharging.