Ten batteries were replaced at ANA after failing, more at JAL. Any info on other carriers?
This is highly unusual, more so as charge end appears to be very conservative at 4V.
4.1V-4.2V charge end is common in consumer and industrial applications.
Every 100 mV above 4V induces four times the stress, it gets worse above 4.3V though.
At 4V, these cells should last a very long time, many years.
The failed batteries must have been examined. Mighty strange that nothing seems to have been done about it.
@Volume
Less than 5%/3A max, was discussed from:
http://www.pprune.org/tech-log/50569...ml#post7656754
through:
http://www.pprune.org/tech-log/50569...ml#post7658425
and the next 10 or so posts