Samsung Galaxy S 2 II SGH-I777 Extended Capacity 3500mAh Li-Ion Battery + Black Battery Door Cover ~ Mobile Phone Repair Parts Replacement Samsung Galaxy S 2 II SGH-I777 Extended Capacity 3500mAh Li-Ion Battery + Black Battery Door Cover Mobile Phone Repair Parts Replacement Rechargeable with no memory effect This item is not for Samsung Galaxy S 2 i9100