Well I have this battery for sale, it's virtually brand new, got it today, discharged it once to verify functionality. It was supposed to be for my current Dell laptop, but I've decided to not keep it, as I am acquiring a new unit in the near future, so this can help to go towards that purchase..
It runs approximately 4.5 hours charge on medium-level tasks from what I have tested it today(web browsing, Winamp playback, screen on 2nd highest brightness level, NIC powered on and powering a set of USB wireless headphones).
Battery type is KD476, 11.1Vdc rating, 85Wh capacity. This is not the typical battery that ships with this model of laptop, those are rated with 53Wh capacity...just to note, this is a GENUINE Dell battery, not a generic model.
Price is $900 FIRM...this is a best price as is - it cost $180 US including shipping to T&T, and taxes came up to just over $400, so this is already just cutting my losses and moving on.
If interested, PM me or post in here.
