A system for predicting a robotic power disconnection includes: a controller; and a robot controllable by the controller, the robot including: a power connector configured to provide power to the robot; and a sensor operably connected to the controller, the sensor configured to detect a change in a field that varies with a changing condition of the power connector, the sensor further configured to alert the controller regarding the change in the field, the controller configured to adjust current through the power connector in response to the alert.