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 3.7V 600mAh Li-ion battery from Energizer replaces the NB-11L for Canon PowerShot A2400/IXUS 240HS/ELPH 320HS and similar camera models. This rechargeable battery can be charged at any battery level, always allowing a full charge (100% memory-free).