Charge (magic)
For magic items, the number of charges reflects the number of times it may be used. For example, if a blue crystal contains 40 charges, it may be activated 40 separate times before the magic is exhausted. Many (but not all) magic items can be recharged. They may or may not "crumble into dust" and be destroyed when the last charge is used.
For enhancive items, charges are a general measure of how long the enhancive property will last. Charges are used up randomly when the enhancive property is active (typically when the item is being worn and not under a enhancive pause). Like magic items, enhancives may or may not be rechargeable, and can be either crumbly or persistent. Recharging enhancive items (provided they are able to be recharged) is a service offered by the Adventurer's Guild in exchange for performing bounty tasks. There are also enhancive rechargers available through the SimuCoin store.