Yow!
|
| Boeing had numerous reliability issues with the main
| batteries on its 787 Dreamliner long before the two battery
| incidents this month grounded the entire fleet.
|
| More than 100 of the lithium ion batteries have failed and
| had to be returned to the Japanese manufacturer, according
| to a person inside the 787 program with direct knowledge.
|
| "We have had at least 100, possibly approaching 150, bad
| batteries so far," the person said. "It's common."
|
| The frequency of battery failures reflects issues with the
| design of the electrical system around the battery, said
| the person on the 787 program.
| ...
http://seattletimes.com/html/businesstechnology/2020241385_787deadbatteriesxml.html

--bks