I have a hexa with 2814/11s motors, APC 10x4.7 props, DJI 30 amp esc, running on a 6000 mah battery. I can hover at altitude for 5.5 minutes with my set up. I haven't weighed my craft yet. If I run two 6000 in parallel I'll get 11.5 minutes of flight time. The only issue is that the motors and...