This drops in Stonebrunt of Kobolds. When I looted the item and held right click to inspect it showed 1 charge. Wiki says it has 5 Charges. When you click on the link created from the person looting it shows 5 charges. I don't know if it's an item id issue or what but I thought I would report it. Mine was done after one click.
http://wiki.project1999.com/Forlorn_...of_Rolfron_Zek