I like the bar graph your using, with its 1/8 drop off.
The circuity and electronics are foreign to me , but I know a good meter when i see it !
I think your onto a money maker, must be more then one model of hybrid that would benefit from your lithium BMS meter.
Maybe your not trying to make money with it, i see a lot of marketable talent here on ecomodder.
Sales Section here on ecomodder could do well..