When I found myself after receiving the battery a week on my way to work, stepped out of my cell phone out a foul-smelling smoke. Quickly formed a huge cloud of smoke and then blew up the battery! My Samsung Galaxy S2 was over after this incident.
So I want to warn all who intend to buy this battery. After doing some research on the internet I found out that many fake batteries do not contain a proper fire and there were too few accidents and even fatalities.