Maybe it happened to me. I am in the process of returning it. After 3 months of light use, as soon as I screw it onto the e-bikes, the valve starts losing air. It does it on all the bikes and on the car

It looks great, I haven't had the chance to inflate any tire yet, but it seems very high quality!

It is well worth the extra 10-12 euros compared to the older version. It inflates the tire faster and has a stronger battery. Its readings differ by one to two PSI from the measurements of my Yaris's sensors, but the difference is always consistent. It has 5 ready-made presets plus one that you set yourself for the case you need most often.

This is the large device and I consider the review to be flawless. Today it filled 4 completely flat tires from a car that had been abandoned for years, stuck to the ground, 14-inch rims. I have had it for a while and it is incredibly smart, very useful, easy to put on or check tire pressure, clearly much more accurate than a gas station pump because of its digital display. Perhaps the only thing I would say is that it gets quite hot after quite a bit of use under pressure; I don't know whether it will cause me any damage in the long run. However, it is a huge safety advantage to go on a trip and know that you have it in your trunk, and if you never need it, but one day you do need it and it is night and in a deserted place, you have already gotten your money's worth, especially if you are with your family!

I expected the battery to last a little longer. It can take a car tire from 10-12 psi to 35 in a satisfactory amount of time, but there won’t be much battery left if it needs to be inflated again.

Must have Tool for offroad bikers! I have mine for over 3 years now. I use it mainly on my motorbike to pump my tires after offroad riding where I need lower tire pressure. I also works perfect on car and bicycle tires. I use mine several times per week since 3 years +, so I can definitely give this a good long time review.

Very good product, very simple in gold, you don't need to go to a gas station to check the tires. As soon as the device is connected, it immediately shows the current pressure; with two clicks we set it and inflate.

A little more powerful than the "basic" one, quite a bit bulkier. If the main use is for car tires and generally more demanding tasks, choose this one. For balls, bicycles, etc., the basic one is just as effective.
Their batteries last around 4 years.

Very useful - reliable, does what it describes, worth the money........... time will surely tell!

Excellent for use on a bicycle and balls. I haven't tried it on the car. The battery lasts a very long time for regular measurement of bicycle tire pressure and topping up, etc. It makes noise (I mention this for anyone who hasn't used one before)

Awesome tool, it also has presets for car, bike, balls, etc. for people who don't know how much they should inflate them. The battery and therefore the inflation capability is crazy for its size, I believe. Obviously it won't inflate 4 completely flat tires on a car, but if you take care of them and inflate them fairly often, it has no problem at all

Super tool, it does what it should and does it well! Also convenient that it has 2 flashlights, one quite powerful and with an SOS distress signal in Morse code and red light, emergency alarm lights!

Excellent tool. For balls, bicycles, but also for the car (I didn't expect that)! It is incredibly accurate and easy to use.

It does what it promises, I bought it for my bicycle, it inflated both tires relatively quickly, I will return with a new review since it has a two-year warranty. Everything I have from Xiaomi, mobile phone ~bluetooth speaker, has proven to be reliable.

Excellent. Worth the money and in case of emergency it is very useful. Not only for the scooter I have, but also for balls, bicycles... Great job

It has been incredibly convenient for me! Since I got it, I have inflated a bunch of bicycle, motorcycle, scooter, and car tires and the battery hasn't dropped even a single bar!

Very good product, I use it for balls, for my bike, and for the car, it works very well. For the car it takes quite some time, but you don't mind, the process is automatic

It does exactly what it says. After having it for days, we tried inflating balls, a bicycle, and car tires. It was excellent in all cases. Quality construction, fast and portable. Especially for car tires, it recognizes the existing pressure and fills accordingly to the level you set!! Exactly what someone needs when on the move or even if you want a device for home use.

It loses a lot of air by the time I unscrew the tire from the scooter's valve, resulting in filling it to 45 psi and dropping below 35 by the time I remove it, so I end up searching around.

Perfect in every way.
On an adventure moto, you can set the pressures as you want during the ride. The battery lasts a very long time

Magical as an accessory for cars/motorbikes and a must for bicycles so you can reach the pressure you want without straining your hand.

Unfortunately, after 10 months of simple use (for cycling), it died and never turned on again.
While it lasted, it was very useful.

very good battery, compact size although I would prefer it to be thinner and longer. it also has a flashlight so you can inflate the tires in the dark. It has a function for recognizing existing pressure and various usage options

It is very good. It inflated 2 large tires from a Mercedes W115 that were completely flat and then the battery ran out. It is just what you need in an emergency.

Small but powerful.
It inflated tires from 2 bicycles and 3 balls and the battery dropped only 20%. I believe it can easily inflate 4 car tires on a single charge.
Unfortunately, the valve for the balls broke, but the fittings are common with all valves, so I adapted the one from the manual pump.

1. Ideal for regular tire checks and topping up air
2. I haven't inflated a completely flat tire so I have no opinion, but it will definitely be time-consuming….
3. Small and convenient size
4. Very easy to use
5. I think an excellent purchase at around €38

better than the old Xiaomi Mi Portable Electric Air Compressor 1S BHR5277GL, I had the old one for over 7 years!!!

It does what it is intended for.

One flaw I found is that it 'trips' the USB charger when you fill it to full.

That is, when it is full you have to unplug the charger from the socket and plug it back in to charge another device. On Reddit there is some more information about what might be causing this.