Defective Battery: The Story Is Not Over Yet

We keep receiving reports from MacBook Pro owners experiencing problems with their batteries.
We can summarize them into 2 categories:
- Some batteries, mostly from MacBook Pro 17", swollen as it was reported for MB Pro 15" and led to the recall, but there was no recall for MB Pro 17" batteries.
- batteries suddenly stop working and providing any power even after fully charging them.
We have had such problem among the team on a MB Pro 15", and we can provide additional details. It was an exchanged unit following the initial recall. After 40 charging cycles, the battery could not be charged more than 50% of its capacity, and once used the MB Pro would switch off suddenly without displaying a "low battery" alarm. Despite procedures to fully discharge it or to recalibrate it, the battery died.
The good news: Apple is quickly exchanging such defective units within 24 hours if you go to an Apple Center with the serial number of your computer. So if you are facing similar problems, do not hesitate to call Apple Support to get your battery exchanged.