This is a generic, equivalent one, 100% compatible.
Replaces Canon battery part numbers: NB-3L

Fits the following Canon camera/camcorders:

Powershot SD10, Powershot SD20,
Powershot SD100, Powershot SD110,
Powershot SD500, Powershot SD550
Digital IXUS I, Digital IXUS II,
Digital IXUS i5, Digital IXUS Iis,
Digital IXUS 700, Digital IXUS 750
IXY Digital 30, IXY Digital 30a,
IXY Digital 600, IXY Digital 700,
IXY Digital D30, IXY Digital L,
IXY Digital L2

New replacement NB-3L battery pack, Replacement for Canon Powershot SD10, SD20, SD100, SD110, SD500, SD550 battery

Specifications:

• Brand: generic/equivalent
• Condition: new, 1 year warranty!
• Voltage: 3.70V
• Capacity: 1000mAh
• Battery Type: li-ion
• Can be charged by original charger
• Dimensions: 44.90 x 32.00 x 9.00 (mm)