2) PHOENIX 25 BRUSHLESS SPEED CONTROLLER recommended set up:
a) 9.1 Option 5 – 9v cut off for 3 cell LiPoly (in conjunction with (f) below)
b) 9.2 Option 3 – Standard current limiting
c) 9.3 Option 5 – Brake Disabled
d) 9.4 Option 2 – Fixed throttle
e) 9.5 Option 2 – Standard Advance Timing (may cause prop to jump at start up)
f) 9.6 Option 2 – Soft Cutoff (informs you when battery is low)
g) 9.7 Option 3 – Fast Start (for fast throttle response – essential for hovering)

THIS IS FROM TROY BUILT MODELS ON HOW HE PRE-PROGRAMS THE SPEED CONTROLS .... It works great for me. You would just need to set it for a 2 cell cut off point...see if yours is the same as this except for the cut off..

O M 2 C