A little upgrade for my Banggood UFO copter. took an 18650 battery and soldered a connector directly to it. Replaced the little 10 gram stick of gum battery that was blowing up like a balloon. Had to remove the landing gear and body and camera but hey it flies! Might fly with the stuff attached...
I challenge you guys to build a "EKIP Tarielka"
That Russian thingy looks like this:
Its cross section looks like this:
And here's a video of it flying, just to prove that it works: