Flexbot Quadcopter V1.5

This is a new version of Flexbot. We’ve made many changes and improvements on the basis of the previous design. For example, the design of the battery holder: the previous design would fall out easily when the copter dropped on the ground. But it would be much trouble for the user if we design it much more tightly.

One day, I was listening to music with my Beats headphones when suddenly it ran out of power. I found the design of its battery part was rather special while I was changing the bat