Energizer® ENB-C4L Digital Replacement Battery for Can
Amazon.com : Kastar Battery (2-Pack) and Charger Kit for Canon NB-4L, CB-2LV work with Canon PowerShot SD40, SD30, SD200, SD300, SD400, SD430, SD450, SD600, SD630, SD750, SD780 IS, SD940 IS, SD960 IS,
Canon NB-4L Battery
CANON CB-2LV BATTERY CHARGER (NB-4L)
Building A USB-C Charger For Canon NB-4L Batteries | Hackaday