Just had a look at that patent. Fwics, at the inflexion point, the remaining time to
full charge is calculated and applied to the battery, but the voltage is not monitored
after that ???. I would have thought that voltage should be monitored continuously,
irrespective of charge or discharge conditions. Also, does the standard reference,
ie: the software battery model, take account of battery aging, where the curve may
change ?. The patent must be only part the story for this application.
Soemone else have more info ?...