ive purchased it. results pending. my "theory" is that by removing the NFC compared to s3's stock battery, u MAY be able to increase space for the battery. but google gives me no results of how big NFC antennas/chips/ whatever is in stock battery could be, so i have no idea if its 900mah difference capable. also keep in mind it may not just be better storage but they may reduce the voltage to give the impression it is 3000 mah by making it last longer.

i have not done any definitive 1 for 1 testing yet, as im right now "conditioning" the sunglobal battery by using it constantly. i will test it by the weekend.