[Jon Stratis]

Using a standalone battery to power that motor down is a good way to do it... but you won't have time for it on the field. In fact, we used a boat winch to pull our robot up to the bar last year, and used a separate battery to reset back in our pits after each match. Of course, we were able to safely remove the robot from the field without needing to do this.

So, I would think you need a different way to lower your arm to safely remove the robot from the field - perhaps some sort of clutch that could disengage the arm from the motor/worm gear, allowing you to lower it (and then re-engage the clutch before your next match)?