Synergy Digital SDNB4L (Li-Ion 3.7V 900mAh) Replacement For Canon NB-4L Battery - For Canon PowerShot SD1000, SD40, SD200, SD600, SD960 IS, 100, SD430, SD30, SD1100, SD400, SD300, SD750, SD780 IS, 300, SD450, SD630, SD940 IS, SD1400 IS, ELPH 310, ELPH 330 Replacement battery for the Canon NB4L, Lithium-Ion (Li-ion) 3.7V (900mAh) This Synergy Digital battery is fully compatible with the original Canon NB4L Battery. 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark