I tried this question earlier but no one had any answers so I thought I would try again.

I am trying to run my warp of the power from my revolution hopper. The output voltage from the hopper is 11 volts. If I hook this to the black and red wires on the warp (for the battery) The warp motor runs continuously.
I have also connected the warp motor to the hopper motor so both will run together. If I put a 9v battery back on the warp it will run correctly with the warp and hopper spinning together from the warp sensor.

Anyone know what's going on?
Thanks
MAC