[liam.larkin]

You make a valid point and I have seen problems before us in 2005 we used venturi and barely got through a round on one battery. So my recommendation is go to eSTOP Robotics LLC website. They are underwritten by a first team outside of Philly they sell a device called the Custom Control Interface. Using this and some simple codeing your driver or operator could turn the pump on and off as they see fit. So when you are running around not holding a tube you could turn the compressor off. This might save enough power. Just a thought

I would speak to the eSTOP people first ofcourse. I believe they use this exact function on their own robot so they would be able to tell you in more detail.