Some artificer infusions have charges, like normal magic items. For example, the mind sharpener from TCE:
The item has 4 charges. […] The item regains 1d4 expended charges daily at dawn.
However, artificers can also redo their infusions whenever they finish a long rest.
Suppose I, an artificer, have completely depleted my mind sharpener. I'd like to have a full stock of four charges for the next day. Can I let the infusion on the object end, and then re-infuse it, bringing it back to its initial four charges? In other words, are the rules for infusions regaining charges only for when they're away from the artificer, unable to be re-infused?