After ordering a replacement battery, I decided to google the part number and look what came up. I know most of this may not be news to some, but might be useful or interesting. I think this was posted by a VZW employee as it says confidential, not anymore! i thought it informative about the car dock.
http://www.chuckscomputer.com/ftp/incrediblelaunchguide.pdf
http://www.chuckscomputer.com/ftp/incrediblelaunchguide.pdf