Best Cordless Air Compressor [Compact & Affordable 2021]

In A Hurry !

Well, if you in a hurry, got no spare time, and just want to know which is the best cordless air compressor. Then I’d recommend the “DeWalt Cordless Air Compressor” as the best companion.

Cordless! And at once there comes in the mind about the absence of cord. But, when there is no cord, how will the machine get into operation? The immediate question born in the mind.

The answer is simple, they are battery operated. You will not plug into power it up at the job site. Therefore, they allow maximum freedom in terms of usage and portability.

However, they require your special attention and care about battery power. You need to check the battery charging status at times. It may need to recharge to invigorate for optimum output.

Otherwise, the low charged or drained battery can result in the subpar work being done by the connected tool. Regarding batteries, I have explained it in the buying guide.

Besides their positives, the cordless air compressors have a limited scope of work. They have applications in low-profile tasks and quick repairs that can suffice with the cordless unit. This is the general rule of thumb for the cordless models.

Before you and I proceed to the best cordless air compressor hunt. Let me give you a thought about it. I did saw many people mix up the cordless air compressors with the cordless tire inflators. Both air compressors and tire inflators have their differences. You already know that they are closely related but that doesn’t mean you can jumble them up to confuse the public.

Best Cordless Air Compressor [Buying Guide 2021]

So, know that’s been cleared up. Let’s move forward with our best cordless air compressor buying guide to assist you in your final decision. Not to worry, as I elucidate technical terms in simpler words for non-technical fellows. Proceeding now…

PSI Rating

About PSI, you are well aware of what does it stands for and what does it relate to. But to just refresh your knowledge, I will rephrase again in fewer words.

Pressure in pounds acted on the area of a square inch is termed as PSI. Higher PSI ratings mean a greater amount of compressed air is available to air-tool to perform heavy-duty jobs.

Tank Capacity

Cordless air compressors are the junior buddies and focus on portability. Thus they have a small reservoir of the tank. Yet, the tank size is enough to entertain small level tasks conveniently.

Battery Charging and Backup

Whenever you go with a product on batteries, you need to know some common yet important factors related to batteries. And these are:

Factors Related To Battery

  • Battery Type
  • Compatibility
  • Power Ratings
  • Charging
  • Backup
  • Battery Life
  • Replacement

Do you Know!

😇 That the batteries have different types such as Li-ion, Ni-Cd, NiMH, and more. You have to select the right one according to your application, like for cordless air compressors we use Li-ion batteries.

I’ll define each in few simple words for you. Another important factor is the power ratings of the battery which include battery voltage and Ah.

Battery Voltage and Ampere

Ah is short for ampere-hour and it is the current in amperes that can be supplied to the tool in one hour. This rating is related to the battery backup also.

Therefore, a greater Ah rating will have an extended time of backup by the battery. You can have more time for backup for doing your tasks. This is actually the prime factor of your interest while buying the product.

The battery charging is related to the battery voltage and its rated current. The charging circuit should be powerful enough to accommodate both for ideal charging.

Multiple factors can affect battery life such as overloading, overheating, and overcharging. You must take care of all these for a longer life-span to avoid possible damage or malfunctioning.

Let me sum-up about the batteries in the end. As the batteries are pre-installed, so you need not worry about some of the above-said factors like type, rating, and charging.

For better tool operation, fully charge the battery before using and replace the faulty one whenever needed. All you need is to take care of your battery and avoid conditions that lower the life of the battery.


The cordless in the name also implies the portability factor. Thus, cordless compressors are smart and compact. They occupy less space and are low-weight products.

You can easily place them and conveniently transport them anywhere within the worksite or to other job locations.

Price and Warranty

Cordless compressors with their great portability features are not much costlier. They are user-friendly in terms of easy operation and pocket-friendly from the budget point of view.

Best Cordless Air Compressor Reviews [In 2021]

At now, you have got the details of prime factors about the cordless air compressor. Now we go ahead with the detailed specification of each cord-free buddy.

List of Best Cordless Air Compressor

Below is a list of best cordless air compressors along with our ratings

NoBest Cordless Air CompressorOur Rating
01DEWALT FLEXVOLT 60v Max 2.5 Gallon Cordless Air Compressor4.5 / 5.0
02Ridgid R0230 Brushless Cordless Air Compressor3.9 / 5.0
03Milwaukee 2840-20 2 Gallon Oil-Free Hand Carry Air CompressorUnder Review
04Ryobi 18-Volt ONE+ Cordless 1 Gal. Portable Air CompressorUnder Review

DEWALT FLEXVOLT 60V Max 2.5 Gallon Cordless Air Compressor (My Personal Recommendation)

The DeWalt cordless air compressor empowered with a brushless motor with a durable, oil-less pump. This heavyset of both can provide the strength of a corded tool.

With 1.2 SCFM @ 90 PSI and a maximum of 135 PSI, the pump can deliver ideal air-flow to a wide range of trim as well as finish applications.

It is installed with a patented and premium grade one turn regulator for accurate PSI adjustments. It has a knob with an indicator to adjust for the desired pressure.

A durable roll cage with rubber feet to protect all the vital components. The feet absorb the vibrations during operation and prevent dislocation.

The compressor is fitted with a smart tank of 2.5 gallons enclosed in the cage. The highly compact and lightweight design with a top handle greatly enhance portability.

A 79 dB noise level is not loud enough to make you irritate and lose your focus during working.

The Lithium-ion 60V, 6 Ah Flexvolt battery can provide backup for 1,220 nails when fully charged.

It can also offer uniform speed to a variety of tasks such as deck lattice, cabinet, and furniture projects. Other applications include molding, baseboards, door, and windows casing work.

The US-made product comes at an attractive price and a superb warranty offer of 3 years.


  • Oil-free compressor
  • Acceptable noise level
  • Durable plastic chassis
  • 3-Years warranty offer
  • The silent unit, as claimed
  • Fair battery charging time
  • Works very well for small jobs
  • Compact and light-weight design
  • A reasonable tank size of 2.5 gallon
  • A mobile unit, easy to carry anywhere
  • Powerful and longlasting 6Ah Flexvolt battery


  • Low recovery time
  • Randomly stop working
  • Shipment needs to be better
  • Sometimes higher PSI not achieved
  • Batteries do not provide the desired backup at times


Ridgid R0230 1 Gal. 18-Volt Brushless Cordless Air Compressor (Tool Only)

The Ridgid cordless air compressor is the innovator and pioneer of the cordless compressor in the industry. The Ridgid R0230 features a brushless motor that can be power up with either a single or double 18V battery.

The company admiringly claims that this model can propel 1200 brad nails with fully charged two 5Ah batteries. It is powerful enough to punch and pierce 2.5-inch nails into the hardest materials.

It is an oil-less compressor that has a throughput of 1 SCFM @ 90 PSI. At its maximum PSI of 120, it can deliver enough power to an extended range of air tools for many applications from finish to trim.

A pretty quiet unit with a noise level of only 77dB. Ideal for both indoor and outdoor jobs.

The compact design with low footprints and a tank of 1 gallon make it easy to store and carry. Fitted on a metal stand with an ergonomic handle ensure excellent portability.

A hose wrap on the top to orderly arrange the air hose in a coiled position. There is also a ¼ Turn Ball Valve for quick tank draining in a single turn. A locking regulate is also installed to keep the pressure constant and prevent changes.

It can be perfectly used with a narrow crown stapler and a headless pinner. It also supports all types of nailing such as brad, straight finish, and angled finish nailing.

The awesome and durable unit, yet available as a refurbished product. The refurbishing process involves repackaging after operational testing, basic service, and inspection.

There is nothing to worried about the overall functionality and working of the compressor. It is shipped with all necessary accessories in a generic carton. Get ready to drain your pocket to get the high valued product available at the dandy price.


  • Oil-less unit
  • Powerful and durable
  • Acceptable noise level
  • Low weight and portable
  • Can utilize 2 batteries also


  • Low tank size
  • No warranty available
  • Being a refurbished unit may be a downside
  • Quickly drain the batteries during functioning


My Personal Recommendation

We’re hoping that it’ll be contentment to your heart. If our recommendation is with you.

While the Milwaukee and Ryobi are still being under review by our Tool Experts. We’ll let you know when the day will come.

Because of our human nature, our perspectives do change with the passage of time and we want to try new things as they excite us when they reveal themselves.

For now, we’re going with the “DeWalt Cordless Air Compressor”. We don’t recommend the Ridgid. Because of its refurbished condition.


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