[Cecil]

Define "kills the robot". Does it lose communication with the Driver Station?

Strafing will take much more power than simply going forward/backwards. Try using a fully charged battery and see if it clears up. If not, check your wiring. Remember that the 12 volt to 5 volt converter for the radio MUST be in the dedicated 12 volt port on the front of the Power Distribution Board and the cRIO MUST use the 24 volt port located in the same area.