[ssi]

I believe that RobotC will not attempt to run the DC motors and servos if the battery voltage is too low.

How do you know the battery is charged? Have you checked it with a meter? At a practice session last fall, another team wanted to borrow a battery (or charger can't remember which) because theirs was not working. It showed full on the charger, but would not run the robot. It turned out the fuse was blown in the battery cable. I replaced their fuse and everything worked fine.