Hello,
To much pitch positive and negative will drain the battery like water on your fingers. For me, Flight time between 4 to 4.30 min. with 15 full reverse 3 sec e/a and 15 full positive at least.
In normal mode between 5 to 7 min. 730mA 3 LiPo

I published a message tittled EVP/Animal where I talked about my experiences.

Regards to all,
Ricardo.