So, after all the months of being grounded because of the problems it had with its batteries, the problem may never be solved. This announcement is against the backdrop of the Dreamliner being certified to fly again at the end of this month.
You have to ask, what batteries did they use for the 777?
Why weren't they used for the Dreamliner?
Could the technology be that different that they couldn't have used a modified battery. I don't remember them speaking of battery problems with any other of their aircraft, so why problems with the Dreamliners batteries?