Answer: battery voltage

[Bobby C]

from what i have noticed, the controller monitors its volltage, and the bot does not and can not monitor its own power input

[jimmy_li]

Only okay or very low. I needed to change the motor power between point A and B for the line follower program (see attachment).

[jimmy_li]

Oops, i meant for the robot.

[ltk]

This has been discussed here (http://www.vexforum.com/showthread.php?p=10167#post10167)