Energizer
Bower ENB-C5L Energizer Digital Replacement Battery NB-5L for Canon IXUS 970 IS, PowerShot SD900 and SX210 IS (Grey)
$24.99
This high-power 7.4V 750mAh Li-ion battery from Energizer replaces the NB-6L for Canon PowerShot SD4000 /D10/IXUS 85 IS and similar camera models. This rechargeable battery can be charged at any battery level, always allowing a full charge (100% memory-free).