Duty cycle matters more than the pressure on the box · review
AstroAI A220B 10.3 bar portable review
A 12 V inflator with a programmable preset: choose a unit, set a pressure, and it inflates to it — which is the feature that makes an inflator usable alone.
The last word The preset makes it walk-away. That is the feature worth paying for.
What lands on the bench
A 12 V portable inflator with a stated 10.3 bar maximum, a programmable preset and unit selection.
Why a preset changes the job
Without one, inflating four tires means standing over the pump four times. With one, it means setting a number and doing something else. It is the difference between a tool you use monthly and one you use twice a year.
Set the unit first
Bar, PSI or kPa. The door placard says which your car uses, and getting the unit wrong is worse than not checking at all.
What is still unpublished
Duty cycle. If the plan is to inflate a flat tire rather than top up four, that is the specification to ask about.
Availability
On sale at around $32 on the American Amazon store at the time of checking.
Prices and availability are what Keepa reported on the date this page was updated; both move.
Prices quoted in this text were read on 4 September 2026. The live price is at the top of the page.
What it does, and what it misses
Strengths
A programmable preset with unit selection — bar, PSI or kPa, whichever the placard uses
A published maximum pressure, which several listings here omit
Compact enough to keep permanently in the boot
Compromises
No duty cycle published
A 12 V socket still limits current and therefore speed
Preset accuracy is not stated
Specifications
Maximum pressure
10.3 bar (150 PSI), stated
Power
12 V, stated
Preset
Programmable — an "M" button selects the unit, then the target pressure is set, stated
Construction
ToughUltra construction stated for robustness
Size
Compact and light for easy storage, stated
Amazon reference
B07QR4Q42L
EAN
0850059155004
The questions that reach us
Which unit should I set?
Whichever your door placard uses. European cars are usually in bar; some list PSI as well. Setting the wrong unit is the most common mistake with programmable inflators, and it is why the selector exists.
Does it stop by itself?
That is what a preset means, and it is the reason to choose a unit with one. Without it, an inflator needs watching.
Our score
8.1/ 10
The preset makes it walk-away. That is the feature worth paying for.
This one’s price among garage tools
A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom, United States. Listed is not the same as in stock — availability changes daily.
Details checked on September 4, 2026.
Who should pick this one, among garage tools
Four tires, one after another, without standing over the pump.
Attachments confirmed for this tool
Listed because the attachment names this tool by name.
Amazon reports what buyers took in the month before this page was last checked: at least 10,000.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Sources
Specifications: the manufacturer sheet for garage tools and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
Cordless 16,000 mAh · dual power · 60 W motor · 195/55 R15 in ~50 s stated · memory chip and auto-stop
A cordless inflator with a published inflation time on a named tire size — 50 seconds for a 195/55 R15 from 30 to 36 PSI, which is a real figure rather than a claim.
Best for: Regular pressure checks where convenience decides whether they happen.