Features:

• Replaces Canon NB-4L
• 3.7V 760mAh
• Lithium-Ion
• 3 Year Warranty
• 3-year warranty

Editor Reviews:

Product Description:
lithium ion battery * compatible with select Canon Digital ELPH cameras including the PowerShot SD200, PowerShot SD300, PowerShot SD400, and PowerShot SD450 * rated capacity: 3.7V, 760mAh *

Rating : - good battery so far
So far so good. Much cheaper than canon OEM,holds charge just as well as original. Don't know about longevity, have only used it for a month.