twitheatrophonic I checked free battery replacement thing it says in not eligible. So does it mean i don't have to change my battery?
I expect Google has a database of which phones got which battery, and I assume their web widget is working from that database. It seems based on all this work and expense that they are trying to avoid trouble. So if they don't think your device has one of the concerning batteries ... it's not clear what grounds there are to worry.
I expect that a week or so after the software is released there will be articles in the press about which batteries from which manufacturers are believed troublesome.
But for the next week or two, no matter how many people are how curious, I suspect waiting is the only thing to do.