Changed design to do away with individual cell monitoring, in order to reduce part count and BoM. - Removal of a 7 way PCB header and about 10 or so resistors, as well as smaller form factor.

Added prevision for auto battery voltage recognition - say battery is at 8.1 v - it's recognised as 2 cell battery and parameters are adjusted accordingly. 

Not sure if relay or large mosfet will be best suited for battery on / off, will experiment!