Originally Posted by alphanu22
i think the NFC is on the Phone but the Battery has to have the pass through circuitry casue if not the NFC wont work-
for the Galaxy s3 NFC IS in the battery. if you look at the battery it will say near field communication by the samsung logo. if you look at the pins at the bottom theres 4. there really only needs to be 2 for the batter (pos and neg) so the other two are for the nfc.
thats why its aways good to go with the name brand when replacing the battery being that most aftermarket batteries dont have NFC with them.