Mumbi battery is best alternative to the original, or better than the original from Samsung as it has 300MA more than original. The first battery did not work after 3 months as It was not nearly enough and charging After Certain percentage not at all. I contacted the seller company and Their response was very prompt and well mannered. They sent me another piece immediately and this one is now working perfectly well.
So my conclusion about this product is, in view of "after sales support", thatthis product is worth 5 star rating as there is nothing to complain about. I will recommend this battery for Galaxy S3 without hesitation.
