Seidio BACY35SSGS3-BK Innocell 3500mAh Extended Life Battery for Samsung Galaxy S III - Retail Packaging - Black Comes with a black replacement door featuring Seidio's signature soft touch coating Keeps your phone charged and ready to go, even with heavy phone and data usage Capacity: 3500mAh We recommend that you leave the battery/your phone on the charger for an additional 2-3 hours after the charging indicator turns green or the battery status shows full For use with Samsung Galaxy S III