Best Cordless Dehumidifier

Dehumidifiers are available in different types and sizes for various purposes. The two main types of dehumidifiers—refrigerant and desiccant—are classified by the method of moisture removal they use. When you think about a dehumidifier, the first thing that comes to mind may be that of the residential refrigerant type with a dehumidification process almost similar to an air conditioner. These dehumidifiers are always plugged in and typically require a lot of electricity to work. However, if you’re looking for a unit you can use in small rooms or on the go, then you need a cordless or wireless dehumidifier.

Desiccant dehumidifiers come in a wide variety of sizes with many different applications. The best thing is they are also continually effective in spaces with lower temperatures and humidity levels. Small cordless dehumidifiers can either be disposable moisture absorbers or rechargeable units depending on the kind of desiccant used.

Before you purchase a dehumidifier, it’s essential to know the capacity you need for the size and moisture level of the space. You must also look at each of the features available. To help you decide, we’ve put together a list of cordless dehumidifiers as well as a guide for everything you need to know about cordless dehumidifiers. 

List of the Top 6 Best Cordless Dehumidifiers

IMAGEPRODUCT
  • Dimensions: 9 x 8.25 x 2.88 inches
  • Capacity: 6 Ounces
  • Weight: 1.2 Pounds
View On Amazon →Read Our Review
  • Dimensions: 8.15 x 7.8 x 4.69 inches
  • Capacity: 4 Fluid Ounces
  • Weight: 16.23 Ounces
View On Amazon →Read Our Review
  • Dimensions: 7.3 x 6 x 2 inches
  • Capacity: 5 Ounces
  • Weight: 0.43 Kilograms
View On Amazon →Read Our Review
  • Dimensions: 9.5 x 9.5 x 2 inches
  • Capacity: 5 Ounces
  • Weight: 1.92 pounds
View On Amazon →Read Our Review
  • Dimensions: 6 x 5.1 x 4.25 inches
  • Capacity: 6 Ounces
  • Weight: 2.09 Pounds
View On Amazon →Read Our Review
  • Dimensions: 1.5 x 6.06 x 2.6 inches
  • Capacity: 1.1 Pounds
  • Weight: 0.5 Kilograms
View On Amazon →Read Our Review
  • Dimensions: 6.69 x 4.13 x 5.63 inches
  • Capacity: 1.1 Pounds
  • Weight: 1.37 Pounds
View On Amazon →Read Our Review
  • Dimensions: 5 x 3.5 x 1.25 inches
  • Capacity: 7 Ounces
  • Weight: 0.4 Pounds
View On Amazon →Read Our Review

Eva-Dry E-333

Eva-dry E-333 Renewable dehumidifier

Afloia Cordless Dehumidifier

Mini Dehumidifier, Afloia Gun Safe Dehumidifier Rechargeable Cordless Dehumidifiers with Heating Base

Pro Breeze Cordless Dehumidifier 

Pro Breeze Wireless Mini Dehumidifier for Small Spaces, Bedrooms, Wardrobes, Closets, Cars

SnapSafe Rechargeable Dehumidifier 75901 

SnapSafe Rechargeable Dehumidifier 75901 

Hornady Canister Dehumidifier 95902 

Hornady Canister Dehumidifier 95902 

Lockdown Silica Gel Can 

Lockdown Silica Gel Can 

DampRid Moisture Absorber

DampRid Moisture Absorber with Activated Charcoal for Boats & RVs

BARSKA 150g Moisture Absorber

BARSKA Safe Moisture Absorber Dehumidifier for Home Closets, Safes, and Cars

Best Cordless Dehumidifiers

Eva-Dry E-333 Renewable Dehumidifier

Eva-dry E-333 Renewable dehumidifier

When talking about wireless renewable dehumidifiers, the top choice for many is the Eva-Dry E-333 unit. For small spaces like cars, RVs, and even closets or safes, this mini dehumidifier is all you need to keep moisture levels in check. This type of portable dehumidifier uses silica gel beads to extract excess moisture from the air. This Eva-Dry unit is a best-seller for a reason. It doesn’t require electricity or batteries to start working, making it suitable for storage spaces and moving vehicles. It is also completely safe and non-toxic to children and pets. 

Simply place the unit where you need it and check the status through the window. When the silica gel beads change color from orange to green, they have reached the maximum capacity of about 4 to 6 ounces of moisture. This usually happens within 20 to 30 days or 3 to 4 weeks. To recharge, plug the unit into a power outlet for eight to ten hours to fully dry out the moisture. You can now reuse the unit and do this repeatedly for up to ten years, as guaranteed by the five-year manufacturer warranty.

Note that the Eva-Dry E-333 can only cover an area of up to 333 cubic feet. It’s ideal for tiny, enclosed spaces and does not impact the humidity levels in a full-sized room. Eva-Dry is extremely light and portable and can easily fit inside closets, safes, cabinets, and even gym bags. It is also available in twin packs and a slightly bigger capacity unit, E-500.

Product Highlights:
• Best-selling cordless dehumidifier
• Cheap, light, and compact
• Easy, wireless operation and recharging
• Up to five years warranty

Afloia Cordless Dehumidifier

Mini Dehumidifier, Afloia Gun Safe Dehumidifier Rechargeable Cordless Dehumidifiers with Heating Base

Afloia is also a best-seller in mini dehumidifiers, particularly Peltier units. Like other renewable units, this Afloia cordless dehumidifier does not require electricity or batteries to operate. This rechargeable dehumidifier uses the same renewable silica gel technology but with a more unique design than the rest of our picks. The cylindrical surface improves the unit’s efficiency by increasing the area of contact with the moist air. This mini dehumidifier extracts up to 4oz or 100ml of moisture in small spaces up to 54 square feet such as closets, cars, RVs, and boats.

Similar to the Eva-Dry, the silica gel inside this unit will change color from orange to dark green once it extracted its maximum moisture capacity. You can monitor the status through the top window to recharge the unit on time. This Afloia dehumidifier as a whole is not actually cordless. The dehumidifying unit itself is wireless but when recharging, the PTC heating base is wired. 

To renew the silica gel, place the dehumidifier stick on the heating base for about two hours. During the recharging process, the base blows warm air out through the vents and the indicator light flashes green. When recharging is done, the light will flash white and the dehumidifier will be on standby mode. Pick up the dehumidifier and put it where you need it or back on the base to start working while plugged in. The unit comes with a one-year warranty.

Product Highlights:
• Light and compact
• No batteries required
• Wired heating base
• Fast recharging process (only 2 hours)

Pro Breeze Cordless Dehumidifier

Pro Breeze Wireless Mini Dehumidifier for Small Spaces, Bedrooms, Wardrobes, Closets, Cars

Pro Breeze is another brand popular for mini dehumidifiers including Peltier models and a rechargeable desiccant unit. It’s most known for this Peltier dehumidifier, but Pro Breeze also offers a renewable silica gel cordless unit similar to the Eva-Dry E-333. The silica gel beads can extract up to 5 ounces of moisture within 20 to 30 days and are guaranteed spill- and mess-free.

Similarly, this Pro Breeze mini dehumidifier can cover up to 333 cubic feet of tiny spaces. You can check the status of the silica gel through the transparent window on the front. When they turn from orange to green, then they have absorbed the maximum capacity and need a recharge to keep working. 

To renew the silica gel, you need to plug the unit for 8 to 10 hours. Remember that this dehumidifier is only suitable for tiny spaces where you need to control moisture like cabinets and safes. There aren’t as many reviews, but this Pro Breeze dehumidifier is a good alternative if the Eva-Dry unit is not available. It’s protected by a one-year manufacturer warranty.

Product highlights:
• Cheap, light, and compact
• Easy, wireless operation and recharging
• Not many reviews yet

SnapSafe Rechargeable Dehumidifier 75901

SnapSafe Rechargeable Dehumidifier 75901 

SnapSafe manufactures a range of safes, lock boxes, and other accessories for the storage and security of valuable items, especially firearms and ammunition. This rechargeable compact dehumidifier by SnapSafe is another good alternative to the popular Eva-Dry. Similar to the rest of our picks, it requires no batteries or electricity to start working. The silica gel crystals inside change color once they have extracted all the moisture they can hold.

You can check through the top window when the silica gel changes color and needs to be recharged. It can cover a relatively larger area of 500 cubic feet. The smaller unit  75900 is ideal for 333 cubic feet of tiny spaces. You can recharge and reuse the dehumidifiers as many times as you need, guaranteed by SnapSafe’s lifetime warranty for all of its products. Simply plug it into a 110V outlet until it has fully dried out within 12 hours.

Product Highlights:
• Requires no batteries or cords
• Lifetime warranty
• Recharging takes longer

Hornady Canister Dehumidifier 95902 

Hornady Canister Dehumidifier 95902 

Hornady manufactures ammunition cartridges and other gun equipment and accessories. It has also acquired SnapSafe. Their canister dehumidifier is one of the top choices for gun safes. Similar to the rechargeable Eva-Dry, it requires no batteries or electricity. It extracts moisture from the air using renewable silica gel beads. With a Hornady dehumidifier, you can protect your guns from rust and corrosion without the addition of a major eyesore in your gun safe. Its sleek and simple design looks great in any corner of your safe or cabinet. 

When the blue cap indicator turns pink, this means the unit needs to be recharged. Recharge the canister by placing it in a 300F oven for up to four hours or until the silica gel turns blue again. Note that this Hornady dehumidifier recharges more quickly than most other brands. Although it can cover a relatively small area of 57 cubic feet, it stands out for its reliability and durability. Ensured with a lifetime warranty, you can recharge and reuse this unit for as many times as you need. 

Protect and preserve your firearms in storage with this Hornady dehumidifier or the larger 95906 unit. It’s also ideal for any small spaces including lockers, hard cases, closets, cabinets, cars, RVs, and boat cabins.

Product Highlights:
• Portable, cordless dehumidifier
• Reactivates easily
• Lifetime warranty
• Shorter recharging but oven use can be inconvenient

Lockdown Silica Gel Can

Lockdown Silica Gel Can 

Another brand popular for gun safe dehumidifiers is Lockdown. It is best known for electric dehumidifier rods, but it also offers a silica gel desiccant inside a metal canister. This desiccant dehumidifier from Lockdown is similar to the Hornady canister from the moisture removal method to the recharging process. This dehumidifier canister contains 750 grams of silica gel and removes moisture in spaces up to 57 cubic feet. 

The silica gel crystals inside change color from orange to green once they have removed all the moisture they can hold. Recharge the unit within four weeks by placing it in the oven at 325°F for a few hours. Some users say it can take up to six hours or longer.

It is cheaper compared to similarly designed canister dehumidifiers and should be good enough for the smallest spaces that need moisture control in extremely humid locations.

Product Highlights:
• Portable and budget-friendly
• Requires no batteries or cords
• Reactivates easily but oven recharging can be inconvenient

DampRid Disposable Moisture Absorber

DampRid Moisture Absorber with Activated Charcoal for Boats & RVs

Compared to other desiccant dehumidifiers, DampRid moisture-absorbing bags and tubs don’t require electricity at any point. It is made mostly of calcium chloride crystals that absorb moisture as soon as they are exposed to moist air. The crystals harden as they collect water, then eventually dissolve into a liquid. This process can take a few weeks up to months. Once all the crystals are gone, all you can do is dispose of the product and replace it.

DampRid comes in small containers like tubs and packets that you can place inside the car or Rv. There are also different sizes and shapes made for closets, bathrooms, bedrooms, and even larger spaces. This particular product includes activated charcoal which also helps eliminate unpleasant odors. 

Moisture absorbers are easy to use. Just peel off the lid on top and place the container where you need it. However, since it collects moisture on its bottom part, there are risks of spilling the liquid, so you should only place it on a flat and steady surface.

Product Highlights:
• Disposable moisture absorber
• Activated charcoal beads eliminate odors
• Dissolves into a liquid when moisture absorption capacity is reached

BARSKA 150g Moisture Absorber

BARSKA Safe Moisture Absorber Dehumidifier for Home Closets, Safes, and Cars

Another great option for portable, energy-saving dehumidifiers is the Barska moisture absorber. It absorbs moisture from the air using renewable silicon dioxide, extracting up to 7oz of moisture within a few weeks up to three months. The silicon dioxide is microwave-safe for easy renewal of the desiccant. The humidity indicator turns from blue to pink when the desiccant has reached its maximum capacity.

To recharge or dry out the moisture collected, place it in the microwave for up to four minutes at 600W. This process takes a lot shorter than most other renewable desiccant dehumidifiers. Make sure there is no grease or oil in the microwave or it can cause a fire accident. Once any grease gets on the unit, you must not dry it in the oven and replace it immediately.

Product Highlights:
• Microwave-safe design
• Fastest recharging process

How Cordless Dehumidifiers Work

Most cordless dehumidifiers use a desiccant such as silica gel to extract excess moisture from the air. Desiccant dehumidifiers have different types that work in different ways. The main process involved in a desiccant system is either absorption or adsorption. The two differ in the ways the water molecules interact with the desiccant material.

Silica Gel Dehumidifier

Adsorption happens only on the surface of the desiccant, usually silica gel. As the moist air meets the silica gel beads, the excess water sticks to the surface of the desiccant until it has reached its full capacity or saturation. Cordless rechargeable dehumidifiers only contain about 500 to 750 grams of silica gel with an extraction capacity of 4 to 6 ounces. Once it has reached this capacity, it can no longer extract any more moisture, no matter how humid the air is. You will first need to desorb or evaporate the moisture by heating up the silica gel. This can be done either by plugging the unit into a power outlet or heating it inside the oven. This can take a few minutes up to several hours.

On the other hand, absorption occurs when the desiccant binds completely with the water, dissolving into a liquid as it absorbs moisture from the air. Dehumidifiers that use this process are more commonly referred to as moisture absorbers. They are technically also cordless, but they are disposable after one use and not renewable. The desiccant used, typically calcium chloride, potassium chloride, or a similar salt crystal, absorbs moisture and forms a liquid that collects in a small container. You can keep reading about this process in our article about DampRid moisture absorbers.

These cordless dehumidifiers are small in size, capacity, and price. They don’t need batteries or electricity to start working. This kind of dehumidifier is ideal for cabinets, closets, kitchen pantries, gun safes, cars, RVs, and more. However, you must note that you do need to recharge it after four to six weeks to dry out the moisture. You can then reuse the dehumidifier repeatedly for long years to come.

EVA-DRY on Cabinets

Electric vs Non-Electric Mini Dehumidifier

Cordless or rechargeable dehumidifiers are often also called non-electric dehumidifiers. Although they do need electricity to recharge, they do not actively use it to perform their tasks. These dehumidifiers have a specialized purpose in the smallest of spaces that need moisture control. You can really benefit from them if you know exactly where to use them. Weigh the following pros and cons of using a cordless, rechargeable dehumidifier before deciding if you need one.

Pros of Cordless Dehumidifiers

Ease of Use

A cordless desiccant dehumidifier generally has the basic design of silica gel beads secured inside some type of container. Anyone can use this type of dehumidifier in almost any tiny, enclosed space with high moisture content. There are no buttons, and no control panel or digital display you will have to decipher. Just place the unit wherever you need it—put it in a corner of your safe, hang it in your closet, or drop it in your gym bag.

Low Maintenance

The unit is usually very light and compact and therefore easy to use and maintain. In fact, the only maintenance you’ll ever need to do is to recharge it. You do need to check the silica gel’s status to be able to recharge it on time. Furthermore, you can use it anytime, while most electric dehumidifiers have an optimal operating temperature range from 59°F to 86°F.

Low Cost

Costs are often a concern for homeowners when buying and using a dehumidifier. Thankfully, cordless units come at very affordable prices. They also do not need electricity when operating, reducing your operating costs. However, they do need to be recharged every few weeks or months, but only for very little electric cost.

Cons of Cordless Dehumidifiers

Low capacity

Rechargeable dehumidifiers have a very limited capacity to absorb moisture, typically 4 to 6 ounces. Meanwhile, moisture absorbers are available in 10 to 14 ounces capacity for the small tubs or hanging packets. Note that this is the total amount of moisture it can remove over a few weeks of use and not daily.

Small coverage

Because of their small size and capacity, rechargeable dehumidifiers can only be used in small spaces from 50 to 500 cubic feet or 10 to 50 square feet. They are only suitable for tiny enclosed rooms or storage spaces that often have moisture problems. They will make little to no impact on humidity levels in a full-sized room. 

Lower value

Looking at the value for your money in terms of the amount of moisture your dehumidifier can remove per dollar of cost, then a rechargeable dehumidifier is not the best choice. A typical rechargeable unit is around 20 times cheaper than the average 50-pint compressor dehumidifier. However, the former has a total capacity of about 0.5 pints every month, which is 100 times smaller than the daily 50 pints. Therefore, you get more value per dollar invested in a regular refrigerant dehumidifier. 

FAQ

How long do rechargeable dehumidifiers last?

Rechargeable dehumidifiers can last up to 10 years of reuse. Note that the moisture levels, condition of the space, recharging frequency, and the total volume of silica gel beads will affect the lifespan of each unit.

Is there such a thing as a battery-operated dehumidifier?

There used to be battery-operated dehumidifiers but they are not sold anymore. Today, cordless renewable dehumidifiers do not actively use electricity or even need batteries to start removing moisture from the air.  

Are non-electric dehumidifiers effective?

They are perfectly capable of reducing moisture levels in their recommended coverage areas. Note that these mini dehumidifiers are only suitable for tiny spaces and may not work at all in any larger room.

Conclusion

Cordless dehumidifiers require little to no maintenance. The most you’ll have to do is recharge the unit by plugging it in or putting it in an oven. For this reason, they are the perfect choice for maintaining proper relative humidity and improving air quality in tiny spaces used for storage or in moving cars or motorhomes. Make sure to use your dehumidifier only in the right type and size of space or it will have no effect at all. You can learn more about other desiccant dehumidifiers here. If you need small dehumidifiers, not necessarily cordless, you can also find more of the best units here.

Related Articles

Vornado Evap2 Whole Room

If you have a poorly insulated home, you are probably struggling with an excessive indoor humidity in which case, you should check out the best

Read More »

Indoor Hygrometer

Maintaining an improper humidity level indoors can cause a lot more than structural damage to the building and decay of furniture pieces as it can

Read More »

GE Dehumidifier Reviews

This is a detailed review of three dehumidifiers by GE Appliances, the ADEL20LY, ADEL35LZ, and APER50LZ. High levels of humidity can cause a variety of

Read More »