First, issue delivery I was a little surprised, limit if the battery does not fall into my mailboxes when I clicked on "confirm order" ... ultra-fast, more stronger than usual. Now to the product itself now, I installed it on my Galaxy S3 Monday, March 31, we are Thursday, April 3rd and I still have not needed to put my phone in charge of me moreover announced in the afternoon "battery charged to 20%" of its beautiful metallic voice. 4 days filled with music, video, consult my email and news, calls and SMS in shambles and even TV shows via my Box. In short! Capacity and bewildering autonomy and it goes without saying that I highly recommend this article especially as the charging times are ultra short.