i need one also for an hp 5000 series laptop. ebay has some good deals, but i am not sure if the batteries are any good. want to upgrade from a 6 cell to a 12 cell.
Always be careful when you get batteries from eBay. You take your chances when you get a non-original HP branded battery. Sometimes the cells are nothing but junk, and you could end up frying you laptop. happened to my friend.