Amazon.com: Synergy Digital SDNB5L (Li-Ion 3.7V 1200mAh) Replacement For Canon NB-5L Battery For Canon IXUS 800 IS, IXUS 90, PowerShot SD900, SD890 IS, SD990 IS, SD970 IS, SD870 IS, SD700, SD850 IS,
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Amazon.com : CB-2LX Battery charger for Canon NB-5L Battery and Canon PowerShot S100, S110, SD700 IS, SD790 IS, SD800 IS, SD850 IS, SD870 IS, SD880 IS, SD890 IS, SD900 IS, SD950 IS,