I can tell you that a 2100mAh li-po will keep it up for 35-45 minutes depending on flying attitude and weight.

My setup I use a GWS Naro 4 channel reciever, and 2 Mini-Std servo's and a GWS ICS100 esc, and I time my flights. I have been up at 1/2 throttle for over 50 minutes once!