I have recharged by taking an old noob humidor, filling a shot glass with distilled water, putting that in a zip lock, put them in the humi, surround the shot glass with the dry Bovedas, zip it but keep air for it to be a bit like a balloon, and close the lid for a few weeks. Remove what I need, throw in some spent Bovedas, rinse and repeat until the shot glass is empty. Can be months.
I like the zip lock cuz it creates a highly humid atmosphere and if some moron bumps the dresser it sits on with his tripod, at least it won't spill all over the humidor.