Canon Battery NB-4L for Ixus 100 IS / 110 IS / 115 HS / 130 IS / 220 HS / 230 HS / 255
Amazon.com : Energizer ENB-C4L Digital Replacement Battery NB-4L for Canon IXUS 120 IS, 30, 50, 80 and PowerShot SD1000 and TX1 (Black) : Digital Camera Batteries : Electronics