@syseng68k
Balancing performs discharge only < 0.05C (my estimate). Charging is serial at up to 1C. Multiplexing charger with Li cells would rely on assumptions on peak cell voltage. Extra connections to same terminal will also help with detecting wire breakage.
I like the pressure sensor idea, it would be very sensitive detecting arcing inside a cell. Actually, silicon pressure sensors have temperature sensors built in for calibration against temperature variations
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@Alison747
There may be a temperature sensor under the white mass. There is no indication of per cell temperature sensors.
@EEngr
Concur, wire terminations are with heat-shrink tube and are tied tight to increase vibration resistance.
@Ian
IMHO circular lugs used.
I pointed the securaplane battery patent out here:
http://www.pprune.org/tech-log/50569...ml#post7645076
It is one of those patents one gets to get a patent for making life harder for the competition to sue one. Well, and a little for marketing hype too. As to its merit, inflection, prediction, assumption is IMHO a demerit.
Guess we will learn more BMU details from the NTSB report.