Be careful buying this - I ordered what I thought would be two genuine batteries, and received two counterfeit items.
The batteries I received were too large to fit comfortably in the phone - I think they could be forced in, but it feels like the pressure required would break the phone itself. Also, there are discrepancies with the printing on the label, and the QR code itself. Also, the batteries came with no packaging or (more importantly) no warranty information. If my phone had a problem with one of these batteries, my warranty would be null and void!