EZOPower 3 x Standard Battery 1650mAh + Battery Charger for AT&T Samsung Galaxy S II / S2 SGH-i777 Android Smart Phone Compatible with Samsung Galaxy S II / s2 SGH-i777 3 x EZOPower Standard Battery 1 x EZOPower Battery Charger PLEASE NOTE: ONLY COMPATIBLE WITH AT&T VERSION ONLY. NOT COMPATIBLE WITH T-MOBILE, SPRINT, VERIZON, AND GLOBAL VERSION.