Mayoki Air Compressor for Pneumatic Brad Nailer Stapler (Tool Only), Compatible with Makita18V Battery, 120 PSI Oil Free Cordless Portable Compressor, 160PSI Digital Tire Inflator for Pickup, Tire

Why I reached for a cordless compressor

I’ve been carrying a compact 12V inflator in my truck for years, but it does nothing for my brad nailer on quick trim punch lists. The Mayoki cordless compressor promised a rare combination: tire inflator convenience plus enough regulated pressure to drive small pneumatic tools, all on a Makita 18V pack. After several weeks of use—from topping off pickup tires to hanging casing and shoe in a couple rooms—here’s how it actually performed.

Setup and battery compatibility

The Mayoki compressor accepts standard Makita 18V slide packs. The battery clicks in with a positive latch and there’s built-in low‑voltage protection, which I appreciate for preserving pack health. There’s no battery or charger in the box, so you’ll want at least a 3.0Ah pack on hand; a 5.0Ah or higher makes the experience notably better.

In the kit, you get a high‑pressure hose for tools, a shorter hose for inflation, common adapters (Schrader, ball needle, nozzle), and a shoulder strap. The entire unit weighs about 2.6 lb without a battery, so even with a 5Ah pack attached it stays manageable.

Controls and display

The interface is straightforward. A clear digital display lets you set target pressure and pick from four units. There’s a bright LED work light for roadside use, and an auto shut‑off that stops right at the preset. The memory function recalls your last target, handy if you routinely top off to the same PSI. Button response is crisp, and the trigger behavior is intuitive: one mode for inflating directly to a set value, and a latching mode intended for powering pneumatic tools.

In my checks against a trusted analog gauge, the readout was close enough for automotive and trim work. For critical tasks (e.g., bike racing pressures), I still confirm with a dedicated gauge, but for general use it’s accurate and repeatable.

Tire inflation performance

As an inflator, the Mayoki is capable and consistent. The manufacturer rates it to 160 PSI, which covers everything from passenger vehicles to many light‑duty truck tires, as well as smaller jobs like wheelbarrow tubes and sports balls. From real use:

• Topping an SUV tire from a mild seasonal drop back to 36–38 PSI took only a few minutes.
• The compressor doesn’t hunt; it hits the preset and shuts off cleanly.
• Hoses and fittings seal well, though like any inflator you’ll lose a whisper of air on disconnect—setting 1 PSI above target takes care of it.

The motor runs at a pitch similar to other compact inflators: not quiet, not obnoxious. It’s much less startling than a shop compressor cycling in a garage, but you won’t be inflating in stealth mode at midnight. The hose gets warm after extended use, which is normal; the heat‑resistant construction helps, and I never found it concerning.

Running pneumatic tools: where it shines and where it doesn’t

The appeal here is brad nailers and staplers without dragging a compressor and 50 feet of hose. The Mayoki is regulated to 120 PSI for tools, which is right in the sweet spot for most 18‑gauge brad nailers and light staplers. In practice:

• Trim carpentry: Driving 1‑1/2" to 2" brads into pine, poplar, and occasional oak face grain was smooth. The compressor keeps up well with paced, deliberate fastening—think cabinetry scribe strips, small runs of casing, shoe molding, and quick fixes.
• Rhythm matters: Like any micro‑compressor, it’s not intended for rapid‑fire or large framing tasks. If you fire in bursts, you’ll feel it catch up for a moment, then you’re ready to continue. For solo finish work, the cadence is natural; for a two‑person crew banging nonstop, it’s not the right tool.
• Tool compatibility: Intermittent‑demand pneumatics are its wheelhouse: brad nailers, narrow crown staplers, and many rivet and rivet‑nut tools. Continuous‑flow tools (die grinders, blow guns held open, paint sprayers) are beyond its air volume.

The included high‑pressure hose uses a standard quick‑connect. I found it most convenient to carry the unit with the shoulder strap when using a nailer; the short hose and the light body tend to tug each other around on the floor otherwise. Expect a two‑hand dance: tool in one, compressor steadied by the strap or set on a flat surface nearby. It’s a reasonable compromise for the freedom of skipping cords and tanks.

Ergonomics and portability

At 2.6 lb bare, the Mayoki is genuinely portable. The carry strap is not just a throw‑in; it’s practical when you’re up a ladder tacking returns or working in a tight hallway. The small footprint lets it perch safely on a stair tread or a window stool. The LED work light is bright enough to see the valve stem at night and to keep from fumbling with adapters in a dim garage.

The accessory kit covers typical needs. If you’re switching between tires and tools, keeping the adapters in a small pouch or the carry case you already own helps; I prefer not to cram all hoses back into tight packaging after they’ve warmed up.

Noise, heat, and general behavior

• Noise: Comparable to most compact inflators—audible but manageable indoors, perfectly fine outdoors. Not whisper‑quiet; definitely more civilized than a pancake compressor spooling up.
• Heat: The motor and hose get warm during sustained inflation or tool recovery. Allowing brief cool‑down between tasks is good practice for longevity.
• Battery life: With a 5Ah pack, I handled a room’s worth of light trim and topped off four tires with power to spare. A smaller pack will work; it just shortens the time between swaps.

Durability and warranty

The housing is tidy, the fittings seat properly, and nothing rattled loose during use. It’s an oil‑free design, which simplifies maintenance—no mess, no checking levels, no migration risk on finish surfaces. The standout here is the five‑year warranty. For a compact cordless compressor, that’s unusually generous and suggests the manufacturer expects it to survive real jobsite bumps.

Limitations and small quirks

• Not a replacement for a real compressor: If your day involves continuous fastening, roofing, or framing, you’ll want a traditional unit with a tank.
• Hose length: The primary inflation hose is short. That’s fine for handheld inflating, less so if you’re trying to set the unit down and reach an awkward stem. Extension hoses solve it but add a bit of setup.
• Recovery cadence: For tools, it performs best when you work in a steady, moderate rhythm—tap, position, tap—rather than rapid sequences. Expect brief recovery cycles after short bursts.

Practical tips from use

• For tires, set 1 PSI above your target to account for the tiny loss on disconnect; the auto shut‑off nails the number cleanly.
• For trim, set your nailer pressure conservatively and test on scrap; many 18‑gauge nailers are happy around 70–90 PSI, which helps the compressor recover faster between shots.
• Use the strap with tools; it keeps the unit from creeping as the hose flexes and speeds your workflow on ladders.

Who it’s for

• DIYers and pros who already own Makita 18V batteries and want a single device for tire care and light pneumatics.
• Trim carpenters doing punch lists, small installs, or service calls where dragging a hose is more hassle than it’s worth.
• Drivers who want a compact, cordless inflator that’s faster and more precise than a cigarette‑lighter unit, with the bonus of running simple air tools.

If your work demands high CFM or all‑day fastening, skip this and stick with a tanked compressor. If you rarely touch pneumatics, a basic inflator might be all you need. But the Mayoki hits a useful middle ground that I haven’t seen often in this size.

Recommendation

I recommend the Mayoki cordless compressor for Makita 18V users who want a dual‑purpose inflator and light‑duty pneumatic companion. It’s compact, simple to use, and genuinely expands what you can do without dragging out a full compressor. The auto shut‑off, clear display, and dependable pressure regulation make tire maintenance easy; the 120 PSI tool mode capably supports brad nailers and staplers at a practical pace. It won’t replace a shop setup for high‑volume work, and the short hose means you’ll adapt your handling a bit, but for punch lists, service calls, and everyday tire care, it’s a lightweight, reliable addition—with a five‑year warranty that meaningfully backs it up.