I'm getting 7-7.5 minute flight time out of my electric 110 using 8 cells 2000 mah Panasonic Nimh. The flight time should be around 11 minutes with 3300 cells. I prefer the lighter batteries.
Here is my set up:
E110
Mega 16/15/3 motor
Phoenix 25 amp. esc
HS-81 MG servos
Heli-Max micro gyro
E voyager landing gear
10 tooth pinion
6 degree blades grip
Hitec 535 micro receiver
8 cells 2000 mah Nimh
Sylvain