Disco Ball powered by Drone Battery and Raspberry Pi

I designed and built this Disco ball for this Halloween (2016) specifically for my 12y granddaughter. It is fully autonomous and can run by itself. It can also connect to my WiFi network when she is near the house and it will pick up signals from my light show here. It will run continuously on the batteries specified for up to 4 hours.

The battery boxes (forward and reversed) are designed to fit DJI Phantom 3 LIPo Batteries. The pi Plate will accept a Rasperry Pi 2 or 3 and a piece of per