Trouble with MGM 22418 - HELP!!!

I just verified that something is wrong. I set the controller to "race mode", held the off the ground and pulled full throttle. Max RPMs measured 39500. I switched to "reduce RPMS" and max throttle doing the same test was 36200. So obviously the controller is limiting power due to the LVC. The question is are the batteries the problem or is it the MGM? I don't have another battery so I am kinda screwed. I don't think its the batteries though. They don't even get warm, not even a little when I run this truck. They don't seem to be strained. Voltage on all cells is 4.16 after this little test. They are supposed to be quite up to the task, so.........

Suggestions?