Ok got a reply from Jason Again. This is what he wrote
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Hi Wayne,
Yes, I see.
Now the BM16 only display 16 cell voltage, and the SOC graph is only for 16s battery gauge NOT 18S. So the SOC graph is not accurate. But if display cell voltage bar, the present LCD cannot display all bars simultaneously due to small space.
The better solution is we design 18S even 24S cell voltage monitor fit in your system, because the SOC graph is more clear and convenient than the 18 voltage bars.
By the way, what is better LCD size for your system? Now the LCD size is 1.8”, please tell me all requirements according to your experience, such as how many connectors for 18S?
Many thanks,
Best Regards,
Jason Wang
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So He is willing to make changes to suit what we would like. So ask away and i'll compile a list of features that we can ask for and see where it goes.
So far he has the following
2 * 8s JST balance connectors.
2 temperature inputs
led alarms
Sound alarms
A state of charge graph for Total cell capacity like a car fuel gauge.
Cell voltage display
So he is willing to make it support more cells what would be a nice figure we should ask for?
I would like to see a easier display of cell voltages. Maybe he could colour code the voltage displays based upon there state. So green for good (4.2 - 3.8 ) Medium (3.7 - 3.4) Bad (3.3 - 3.2) OMG! (>3.2) Flashing red.
I would be happy with what he has if he could do something better in the voltage display. Being able to plug all my packs into a 24S would be good as well.
OK ill await some more feedback.
Wayne