Rechargeable dehumidifiers are usually small units that use desiccant material to keep the levels of humidity lower in your space. These units are very useful and can be used anywhere anytime. They are tiny units that can be placed in wardrobes, closets, bathroom windows and many other areas where you do not necessarily have power extensions. They take just a few hours to charge after working for a night or two. These units are also very cheap and can last for as long as you can have them. They do not require batteries that may worry you when they drain out. Most desiccant material used is also very durable and a certain color change usually indicates if it’s ready to work again after charging. Some examples include, Amcor, Kingavon, etc..