Samsung original battery pack (Li-Ion, 1,650 mAh) EB-F1A2GBUCSTD (compatible with Galaxy S2, Galaxy R) (Wireless Phone Accessory)
I have first bought this battery at a MarketPlace provider. When the battery arrived in a simple clear plastic bags, I was a little suspicious and asked Uncle Google, how it looks with counterfeit Samsung batteries. Compared with the original battery