Charges

From WoWWiki

For other uses see Charge (disambiguation).

Items with charges (also known as "charged items") are simply items that have limit on the number of uses until they disappear.

For example, [Discombobulator Ray] has 5 charges, so it can be used only 5 times, and after that it is gone. The usual number of charges is 1 for explosives, bombs, and enchants, and 3 to 5 for various oils, poisons, etc.

Items with charges usually cannot be equipped but are used directly, either to act upon a target, or to enhance an item (like the enchanting rewards from the Zandalar Tribe).

Some buffs like Inner Fire also have charges, and the buff disappears when all charges are expended.