I recently bought the Xiaomi Portable Electric Air Compressor 2 from Amazon for €36, mainly because I needed to put some air into the tyres of my Dacia Duster Mat Edition, which is fitted with Dunlop all-season tyres.
Being a new car, it was due for its first Hauptuntersuchung (HU) after three years, which I had done in first half of July 2026 at Stop+Go, die Autowerkstatt in Chemnitz.
A few days later, I started getting a message on the dashboard telling me that I needed to inflate the tyres and recalibrate the tyre pressure monitoring system.
It was the first time I had seen this warning, but I suppose it was about time. The car spends most of its life sitting in the parking lot, and I have driven it only around 1,800 km in total. Maybe I should sell it. 🙂
By the way, Chemnitz is the city where I seem to notice Dacia cars the most. Maybe people here are more price-conscious, maybe they are simply more practical — I don’t know. To my surprise, it is also the only city where I have seen another Dacia Duster Mat Edition like mine. Pretty cool, considering that the Mat Edition was limited to only 225 cars in Germany.
Anyway, back to the Xiaomi compressor.
So far, I’m quite happy with it. Starting with a fully charged battery, the compressor inflated two tyres from 1.1 bar to 2.5 bar. It then managed to inflate a third tyre from 1.1 bar to 2.1 bar before the battery was completely empty.
Inflating one tyre from 1.1 to 2.5 bar took around 7-8 minutes.
That may sound slow compared with a large workshop compressor, but for such a small battery-powered device, I think the performance is very good. It is compact, easy to use, lets you set the desired pressure, and automatically stops once that pressure is reached.
I also tested the charging time.
After completely draining the battery, I connected the compressor to a USB-A port on my desktop PC at 09:40. The battery indicator went from one line to two lines in about 11 minutes, and all four lines were showing by 11:10.
So, according to the battery indicator, it took about 90 minutes to go from empty to four lines when charging from my desktop computer.
Xiaomi advertises the compressor as being able to handle multiple tyre top-ups on a single charge, and based on my real-world test, that seems reasonable. The tyres on my Duster are relatively large, and going from only 1.1 bar all the way to 2.5 bar is much more demanding than simply topping up a tyre that is slightly below its recommended pressure.
For €36, I think it was a very good purchase. It is obviously not something I would want to use for inflating four completely flat SUV tyres on a regular basis, but for checking tyre pressures, topping them up, or dealing with an underinflated tyre away from home, it works very nicely.
So far: compact, practical, simple to use, and better than I expected for the price.
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