This Lithium Ion battery pack is not manufactured by Canon but is designed to meet or exceed the original battery specifications.
Chemistry: Li-ion
Voltage: 3.7v
Capacity: 700 mAh
Guaranteed to fit Canon NB-3L type batteries
Guaranteed to work with the following Canon cameras:
Canon PowerShot SD10, PowerShot SD20, PowerShot SD110, IXUS II, IXY DIGITAL 30, IXUS i PowerShot SD110 DIGITAL ELPH[A], DIGITAL IXUS II s[E], IXY D30a[J]