@Hi_Tech
All I can contribute wrt your questions is that more than 100 Batteries were replaced, whereby one may speculate that it was bound to happen.
The only hint of progress on Primary failures was today when anomalies were found by JTSB in ANA APU battery. (#729)
@ITman
My estimate for max charge current is 0.7C and for max discharge current 4C in case of APU battery and 2C in case of Main battery.
These LiCoO2 cells are de-rated to 4.025V, and should not show any anomalies after a few months / a few hundred flight hours.
Edit: Peak currents are a lesser concern these days as all heavy loads are inverter driven, and that with soft start, without which, an inverter driving a variable frequency load, such as a starter generator, would not survive.
Last edited by saptzae; 19th Feb 2013 at 14:34.