I was wondering if anyone has tried the 'electrified' app from the google app store? Looks like it can read some of the high voltage battery status, including SOH%, min/max cell voltages, etc. over OBD2 port using same bluetooth adapters as used by those who coded their I3. I have an iphone, not android unfortunately, so I can't try it out easily. Someone posted a video on utube about a month ago ( see link). I'm curious if it is any good...
https://www.youtube.com/watch?v=LgMhEr9r0zE
https://www.youtube.com/watch?v=LgMhEr9r0zE