Smart Universal Battery Charger with USB Output and Car Charger for Samsung Galaxy S II Galaxy S2 GT-I9100 i9100(NOT Compatible with Sprint galaxy s II Epic Touch 4G, NOT Compatible with AT&T galaxy s II(SGH-I777), NOT Compatible with T-moblie galaxy s II(SGH-T989)) Best battery charger for your Samsung Galaxy S II Galaxy S 2 GT-I9100, i9100 Quick charger with portable, fashionable design. Easy to handle, handy for both indoor and outside USB output: DC 5.0v, 600mA / Desktop Charging output: DC 4.20V, 600mA Innovative and award winning design; compatible with all Single Cell Lithium Batteries Buy from LaptopMate to ensure high-quality products--Ship next business day- 6 months warranty