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Four Tires Topped Off. No Gas Station.

Cosari AirVault 150

Flip the brass lever onto the valve, tap your target, press start.

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  • 52-second top-off from 29 to 35 PSI
  • Auto-stop accurate to ±0.5 PSI
  • Lever-lock brass chuck with under 0.1 PSI loss
  • Holds 92% charge after 12 months in your
Cosari AirVault 150
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24-Hour Supportfast, helpful customer care

Built Around the Problems Drivers Actually Have

We started with the most common complaints about cordless inflators and engineered each one out.

22mm Die-Cast Cylinder

A metal piston in an alloy cylinder moves 34 L/min, enough to top off a 205/55 R16 tire from 29 to 35 PSI in 52 seconds.

±0.5 PSI Auto-Stop

Set your target on the dual-line screen and walk away. It shuts off at the number you chose, checked against a calibrated racing gauge.

Quick-Lock Brass Chuck

Press it on and flip the lever. No threading, no burned fingertips, and under 0.1 PSI lost when you take it off.

12-Month Standby + LED

Low-drain cells hold 92% charge for a year in a glovebox, and the top-mounted LED lights up the valve on a dark roadside.

How It Works

Lock On in One Motion

Lock On in One Motion

Press the brass chuck onto the valve stem and flip the thumb lever down. It seals in about 0.2 seconds with no twisting.

Read It, Set It, Start It

Read It, Set It, Start It

The top line shows the tire's current pressure. Tap a preset or adjust the target on the bottom line, then press the center button.

Hands-Free, Even at Night

Hands-Free, Even at Night

Set it on the ground and let it run. The LED light shows the valve, and the pump stops on its own at your target.

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Excellent4.8 (247)Trustpilot

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Cosari AirVault 150

Cordless 150-PSI Digital Tire Inflator with Quick-Lock Brass Chuck

Backed by our 30-Day Money-Back Trial & Full 2-Year Cosari Warranty.

$69.99 $139.99 Free Tracked Shipping (5–7 Days) Included

In Stock: Delivers in 5–7 Business Days. Free insured US delivery with tracking.

30-Day Money-Back Guarantee plus a full 2-Year Warranty.

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Description

Who it's for: Drivers managing one or two family cars, plus bikes and sports gear, who are done with broken gas-station air machines and want a tool that works the first time on a cold morning.

What makes it different: Most cordless inflators use a screw-on chuck that gets hot and leaks air during removal. The AirVault 150 uses a lever-lock brass chuck on a heat-shielded braided hose, so the pressure you set is the pressure you keep.

Honest limits: It runs at 76 dB, about as loud as a vacuum cleaner, and it's sized for cars, SUVs, pickups, and bikes, not for repeatedly airing up oversized off-road tires from very low pressure.

5–7 Day Shipping & 30-Day Returns

Free 5–7 Day US Shipping: Every order ships free with full tracking and delivers in 5 to 7 business days.

30-Day Trial: Try it at home for 30 days risk-free. Need help? Email us anytime at support@buycosari.com.

2-Year Warranty: If anything goes wrong within 2 years, we replace it free of charge or refund your order in full.

Why Choose the Cosari AirVault 150?

Cosari AirVault 150 Detail

Heat-Shielded Braided Hose

After four tires in a row, the grip measured 101°F. Bare brass connectors on rival units reached 198°F.

4 One-Touch Presets

Car, motorcycle, bike, and ball presets, with the last setting remembered so the second car takes one press.

Glovebox Footprint

About the size of a large power bank. It fits a door pocket or console bin, so it's in the car when you need it.

Cosari AirVault 150 vs. Ordinary Alternatives

Cosari AirVault 150Standard Competitors

FeatureCosari AirVault 150Standard Competitors
Attaching to the valveFlip a lever in 0.2 secondsThread a brass collar by hand
Air lost on removalUnder 0.1 PSIOften 2 to 3 PSI
Gauge accuracy±0.5 PSI auto-stopCommonly off by 1 to 3 PSI
After months in the trunkRated 92% charge after 12 monthsOften drained or won't charge
ChargingUSB-C from car, laptop, or wallProprietary battery or charger
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What's Included

In the Box
  • 1 × Cosari AirVault 150 cordless tire inflator
  • 1 × Braided high-pressure hose with brass quick-lock chuck
  • 1 × USB-C charging cable
  • 1 × Ripstop storage pouch with 3-piece valve adapter set (Presta, ball needle, inflatable cone)
Technical Specifications
  • Max Pressure: 150 PSI
  • Airflow: 34 L/min from a 22mm die-cast alloy cylinder
  • Gauge Accuracy: ±0.5 PSI with automatic shutoff
  • Top-Off Speed: 52 s (205/55 R16, 29 to 35 PSI); 4 min 18 s from flat
  • Noise: 76 dB at 1 m
  • Size & Weight: 158 × 68 × 46 mm; 540 g (1.19 lb)
  • Charging: USB-C input
  • Standby Retention: 92% after 12 months (-4°F to 140°F storage)
Care & Safety
  • Recharge the AirVault 150 every few months even if you haven't used it, and keep it in its pouch so the hose and adapters stay together and clean.
  • Let the unit cool for a few minutes after inflating a fully flat tire or several tires in a row, and wipe road grit off the brass chuck before storing it.
  • Backed by our 30-Day Money-Back Guarantee & 2-Year Warranty
  • Customer Support: support@buycosari.com
In the Box Cosari AirVault 150

Ready in Three Steps

Swipe left for steps 2 and 3

  1. Snap Onto the Valve
    1

    Snap Onto the Valve

    Press the brass chuck onto the tire's valve stem and flip the lever down to lock it.

  2. Tap Your Target PSI
    2

    Tap Your Target PSI

    Choose the Car preset or set the pressure from your door jamb placard, then press start.

  3. Let It Stop Itself
    3

    Let It Stop Itself

    Set it down and stand back. It shuts off at your target, and the lever chuck comes off cleanly.

Verified Customer Reviews

What 200+ Verified Buyers Say About the Cosari AirVault 150

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Based on 247 verified reviews
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97% of buyers recommend the Cosari AirVault 150
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Mark T.2 days ago

Matched my calibrated JACO gauge to the exact half-PSI

First 34-degree morning of the season and both our CR-V and my truck lit up the low-tire warning. Three gas stations in a row had 'OUT OF ORDER' bags taped over their air pumps, so I ordered the Cosari AirVault 150. Checked the auto-shutoff against my calibrated JACO dial gauge expecting it to be off by 2 or 3 PSI like my old 12V cigarette-lighter pump. Set the Cosari to 35.0, it clicked off automatically, and the JACO read 35.0 on all four corners. The quick-lock brass lever snaps onto the valve stem with zero hiss and zero burned fingers.

Verified Purchase · Austin, TX · Cosari AirVault 150

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David R.4 days ago

No more wrestling hot twist-on hoses in the dark

Do NOT buy any inflator with a twist-on threaded hose. My old portable unit got so hot by tire #3 that it blistered my index finger and hissed out 3 PSI while I fought to unscrew it off the stem. The braided hose on this Cosari stayed totally touchable after bringing all four RAV4 tires up from 28 to 35 PSI, and the flip-lever brass chuck pops off cleanly without losing a whisper of air. The dual-line screen is also huge for my 54-year-old eyes—top number shows current tire pressure, bottom shows your target.

Verified Purchase · Austin, TX · Cosari AirVault 150

✓ Verified Purchase
Sarah M.1 week ago

Sat in a freezing trunk for four months and still had full bars

I bought a cheap cordless stick pump last year, threw it in the trunk, and when I actually needed it for a slow nail leak in November it was completely dead. Standby battery retention is the only spec that matters for emergency gear. I charged the AirVault 150 when it arrived, left it in the back of my Outback through three sub-freezing weeks, and just used it to top off all four tires plus a neighbor's sedan—still had two bars left.

Verified Purchase · Austin, TX · Cosari AirVault 150

✓ Verified Purchase
Brian K.1 week ago

Fits right in my Tacoma door pocket next to a flashlight

I own yellow 20V power tools and love them, but their cordless inflator is the size of a bowling bag. This Cosari slides right into my Tacoma's front door pocket and still topped off my 265/70R17 all-terrains from 30 to 36 PSI without breaking a sweat. Having the emergencyBackup DC cord tucked in the bag is a smart touch too, though I haven't needed it yet.

Verified Purchase · Austin, TX · Cosari AirVault 150

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Linda G.2 weeks ago

So much easier than unspooling 12V cords in the slush

Paid $2.50 tap-to-pay at a Shell station last month and their broken metal chuck actually let air OUT of my tire from 28 down to 21 PSI before the timer shut off. Never again. With this, you just flip the little brass lever onto the valve stem, hit the center button, and wait about 45 seconds until it clicks off by itself. Zero dragging filthy power cords across wet car mats.

Verified Purchase · Austin, TX · Cosari AirVault 150

✓ Verified Purchase
Chris P.2 weeks ago

Bought for roadside peace of mind, use it every Sunday on my road bike

Our new hybrid came with zero spare tire, so I picked this up for the glovebox. Ended up using it every weekend on my road bike's Presta valves at 92 PSI and the kids' soccer balls. Switching from the car mode to bike mode takes two clicks and it hits high pressure in under 20 seconds.

Verified Purchase · Austin, TX · Cosari AirVault 150

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Gregory H.3 weeks ago

Stays put on the driveway instead of walking across the concrete

My old corded compressor vibrated so hard it walked four feet down the concrete driveway screaming like a chainsaw. The AirVault 150 has a much deeper, damped hum and doesn't rattle across the pavement when I top off the tires at 6:30 AM before work.

Verified Purchase · Austin, TX · Cosari AirVault 150

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Elena V.3 weeks ago

Picked up two more for my college kids

After seeing how fast it brought our Highlander tires back up to 36 PSI on the first frosty morning of the fall, I used the 50% off deal to grab two more for our kids driving back and forth to state college. Way better peace of mind per dollar than anything else you can put in their trunk.

Verified Purchase · Austin, TX · Cosari AirVault 150

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steven_w1 month ago

Loud like any real compressor, but fast and dead accurate

Don't expect it to whisper—it's pumping real air with a metal piston, so it sounds like a handheld shop vac in an enclosed garage. That said, stepping outside on the driveway it's totally fine, and it took my F-150 front tire up 5 PSI in right around a minute without the hose getting hot.

Verified Purchase · Austin, TX · Cosari AirVault 150

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Marcus D.1 month ago

Built-in work light actually points right at the valve stem

Had to air up a slow leak in an unlit commuter lot at 6 PM. The LED light on top of the unit shines right along the hose path so you aren't holding your phone flashlight in your teeth while trying to find the valve cap. Worth every penny.

Verified Purchase · Austin, TX · Cosari AirVault 150

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Frequently Asked Questions

How many tires can it inflate on one charge?

Up to about 12 routine top-offs from 29 to 35 PSI, or around 3.5 completely flat sedan tires from 0 to 35 PSI.

Does it lose air when you take the hose off?

Very little. The brass lever chuck releases in about 0.2 seconds, and in our tests the loss was under 0.1 PSI.

Will the battery die sitting in a hot or cold car?

It uses low-self-discharge cells rated to keep 92% of their charge after 12 months stored between -4°F and 140°F. Ours still inflated two tires after 48 hours at 10°F.

How accurate is the auto-shutoff?

It's rated to ±0.5 PSI. In our checks against a calibrated Longacre gauge at 32, 36, and 44 PSI, every reading landed within that range.

Does it work on SUVs, bikes, and sports balls?

Yes. It reaches 150 PSI and has presets for car, motorcycle, bike, and ball, plus a Presta adapter, a ball needle, and an inflatable cone.

How do I charge it?

With the included USB-C cable. You can charge it from your car's USB port, a laptop charger, or a standard wall adapter.

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