Buy from Amazon.com : http://fave.co/1N7xc00

Canon DC900 DC Coupler for use with Canon's CA-900 or CB-900 Compact Power Adapters

Product Description :
Connects to Canon CA-900 or CB-900 compact power charger and adapters
Replacement part that will allow you to provide power to your compatible Canon professional camcorder
Compatible with Canons XL1 and XL1S professional digital camcorders