ONE STORE Samsung Infuse 4G/SGH-i997 3500mah High Capacity Premium Replacment Lithium-ion Battery with Plastic Battery Back Cover 3500mAn high volumn rechargeable li-Ion battery ,make your phone use longer compatible with :Samsung Infuse 4G/SGH-I997 EUROPE VERSION come with a black back plastic cover case which designed specail for this high volumn battery made from the high quality To obtain the full capacity of your battery, 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.