Insten NB-4L Compatible Battery Charger for Canon PowerShot SD780 is/PowerShot SD940 is/PowerShot SD1400 is Digital Camera NOTE: For a successful and safe charge of your battery, make sure to correctly align polarity ( positive / negative) before placing battery into charger Dimension: 3.25 x 1.5 x 1.75 inch Specifications: Input: AC 100V~240V / Output: DC 4.2V~8.4V Dimension: 105 x 60 x 35mm / Weight: 190g Charger suitable for Canon NB-4L camera/camcorder batteries