Charged Wand (5e Equipment)
From D&D Wiki
A charged wand is a lesser form of magic wand, 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 superior magic wand.
A charged wand has 2d4 charges. While holding the wand your can spend a bonus action to expend a charge. This activates the charged wand for 1 minute, during which you gain a +1 bonus to spell attack rolls.
When all the charges are expended, it becomes a normal non-magical wand.