Bart,

I can get around 8 minutes of scale flying on my T-Rex with my 2200mAh battery. And the B400 is lighter so it should be able to fly longer. Just curious is the ESC or motor getting hot. I was thinking that with the stock ESC if it got too hot it would cut the power. People have upgraded to a higher current rating ESC. I was thinking it was 35A-40A range. Do you know how to reprogram the ESC? If you do I think the E-Flite ESC can disable the low voltage cut off or make it past the recommended range. On my Align ESC I have the cut off as low as possible. What is your pitch, pitch curves, and throttle curves?

Nick