Like Amazon Prime Air, carrying something needed and fly for more than one hour.
I don't want to drop a lot of things that should be carried on the copter and make a extreme unuseful toy UAV to fly a longer time just to prove a longer flight time.
I want a practical copter which could fly a long distance and long time and carry something I need. Maybe to my mama 50km away from me.
Is there any more powerful battery with light weight and high density I could buy?