Replaced the old battery with a new one and after a couple of tests I could get a longer flight time without crashing. It still crashed in the end and broke it, but good experience was gained with this first MonoMaya prototype. I have a very good idea on the direction to go to get a real Mono out of this cute ball
https://www.youtube.com/watch?v=fxQE...ature=youtu.be
https://www.youtube.com/watch?v=fxQELYjcD-c&feature=youtu.be