junolau

I don't think it is just a hardware problem.

I thought he said he obtained the passwords from some apple update 2 years ago, which means the battery could be "updated" through some portal ,turns out such kind of hacking could be done in software level.

This guy claims he's gonna publish something that could change your MacBooks batteries' password into random strings, which means, your battery can no longer be updated, at least not by Apple. It doesn't seem to be quite a right solution for me... if someone hacked this tool, your MacBook's battery is his slave forever before anybody could crack that very password, which is probably not gonna be achieved easier than reinstall OS + hardisk + battery + etc, or buy a new MacBook.