It's probably the toughest to tell whether or not this battery is original manufacturer certified or just some cheap chinese knockoff. All the stuff seems genuine, even the hologram on the wrap foil on the physical battery. Regardless of whether or not it is the real deal... I bought a new battery to replace my original manufacturer's one that was only getting about 30 min talk time per full charge (V3 razr phone). The new battery works like a charm... I now don't have to buy a completely new phone. Pretty sweet. I bought the biz from SFPlanet... great shipping and great battery. I might buy a few more just to have as spares. Thanks so much... I am very pleased. They shipped the new battery for 7.50 including shipping. Good stuff. Make sure it is coming from SF Planet... you won't regret it. Cheers. :)