Charged Armor (5e Equipment)

Armor (light, medium or heavy), common

Charged armor is a lesser form of magic armor, being cheaper to craft and requiring less talent. They are created intentionally by hedge wizards and other lesser spellcasters, or they can be the result of a failed attempt at crafting a normal suit of magic armor.
A suit of charged armor has 1d4 + 1 charges. While you are wearing it, you can spend a bonus action to expend a charge. This activates the charged armor for 1 minute, during which it is treated as a suit of magic armor with a +1 bonus to AC.
When all the charges are expended, it becomes a normal suit of nonmagical armor.