I got a email back, but they can't order it as Grin Tech was the supplier. Grin Tech isn't carrying it anymore, so I'm out of options now. I just a bag big enough for the battery, and have some means of cutting the power to the rest of the bike. Maybe I could wire in a key switch somewhere between the battery and the controller, but I would need to protect it from the elements and it would to need to be secured some how to something. Suggestions, or Ideas ?