I have a S3 clone that came with two batteries. Now I'm trying to order some replacement batteries for that. First I tried with samsung s3 original battery (3.8 V) but it doesn't work. The old battery that the clone came with is marked with: EB-F1A2GBU (3.7 V). Looking on the websites (ebay/amazon) I found that this model of battery (EB-F1A2GBU) is for samsung S2. Now my question is, have anyone tried a S2 battery on their S3 GT-I9300 clone? Any suggestion will be appreciated. Thanx!