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
Battery CANON IXUS 400
Canon IXUS External Power Battery Mod - YouTube
Battery for Canon Digital IXUS 400, 3.7V, 830mAh, Li-ion: Amazon.co.uk: Electronics & Photo
CELLONIC® Batteria NB-1LH Compatibile con Canon Digital Ixus 500, 400, 430, 330, V2, V3, PowerShot S200 Digital Elph, S100, S400, S110 capacità 950mAh Ricambio Sostituzione Battery : Amazon.it: Elettronica