I cut the SQ13 case because I could not remove electronics even after removing 4 screws. I was able to remove the end cap at the end where the microphone and battery reside. The other end is where the lens and the infrared LEDs are located. I had to bend the aluminum case in order to free the electronics. In the process , the battery connections disconnected.
I plan to monitor the WiFi transmissions to see if I can hack control of the SQ13. I will also add a connector so I can add a larger lithium battery.