Wow, this is kind of nuts (Lenovo battery thread)

The SO brought her laptop home from work (previously my T61) so I could update the software on it to give her better support for Presentation mode. While doing the updates, I noticed I'd left the Battery Recall tester program on the desktop. I ran it a couple of months after the battery died (barely out of warranty) and ran it this summer; both times the system wasn't deemed eligible. I ran it again just for the heck of it --now it IS eligible, and I've filled out the form to get a replacement battery. What's up with that?

Coincidentally (or not) there was an update for Power Manager that I applied before testing, but the system was reloaded this summer prior to her taking it to work, and so as of July/August, every driver and app was up-to-date.

 

The battery recall program have certain specifics changed, the program itself doesn't determine the eligibility, it only reads the specification and data off your battery controller chip. It then sends out these information to the central database, which matches up these information and see whether you are eligible or not.

No one knows exactly how which information are deemed to be necessary for the eligibility, also we can usually guess.