AstroAI Tire Inflator Air Compressor Cordless Car Tire Pump with 20V Rechargeable Li-ion Battery 150 PSI Portable Handheld Air Pump with 12 V Car Power Adapter for Cars Motorcycles LS40791（C1）

The main features I wanted this tire inflator for are: portability, dual power source and large battery capacity. Great to read the current pressure and have the inflator control the target value for pressure, no more swapping of the connector for a pressure gauge. And it looks accurate, by comparison with the stand-alone gauge readings. Also great to have a light when trying to fit the connector to the tire’s valve stem. The manual is well written, the only thing it doesn’t mention is the auto-shutoff: yes, the tool does shutoff in a minute or so of no use. The manufacturer’s website has the pdf version of the manual for download. For the drawbacks: - noisy. Not as noisy as other inflators I’ve used, though I’ve seen far better ones in this respect; - disappointed that the instructions state not to use in humid conditions: well, flat tires still happen even in wet weather; - no case – big dent in portability, I don’t want this tossed around in the trunk. The version on the manufacturer’s website DOES come with a case: “Storage bag: easy to store items Storage bag: 11.22*2.8*9.13 inch” – boohoo! - proprietary battery (of course) - the battery charging should take one hour per the manufacturer’s website product page, but that was not my experience: charging is real slow, almost two hours to get it to green from above minimum charge. And the on-battery indicator is an “all or nothing” on charging, red or green, cannot tell where the charging is at without taking the battery off the charger and putting it into the tool, so the tool display shows the battery charge value. The tool comes with a 2 years warranty and the manufacturer provides contact info, email and a phone number and a website.

I rated this pump five stars based off what this unit is designed for. First off, this is not a heavy-duty air pump that you are going to replace a compressor with. But if you are realistic in your expectations, overall, I think you would be satisfied. Pros: Light weight tool Easy to read digital battery level indicator, pressure settings, and adjustment settings. You can set the desired pressure, and it stops automatically when it reaches that pressure. Works well for light duty use, such as bicycles, basketballs, possibly rafts, etc Good for topping off filled tires or filling one or two flat car tires. Cons: Loud Not robust for everyday use Not for higher volume tires Low quality feel I have a heavy-duty compressor for my everyday uses, but I wanted a light weight easy to use portable compressor for light duty use that didnt break the bank, something on par with a hand pump that was a bit easier to use, and this fits the bill. I initially used it to top off four already filled car tires from 31lbs to 35lbs. I found this compressor to be accurate and worked effortlessly to top off the tires. I have a truck that the tires are normally filled to 80psi, the pressure was 78lbs and I set the compressor to 84lbs and gave it a try. It was definitely struggling but was able to pump to 82lbs before I turned it off. Honestly, I was impressed it was able to hit that pressure, in a reasonable time frame. I stopped it because it was struggling to the point where I may force it to fail, and I didnt want to do that. This compressor is just not designed for that type of load and is designed to pump at a smaller volume. I think this compressor would fill a flat car tire with no issue, but it will probably take a while. I think it could handle the once in a while flat car tire, but I wouldnt expect it to handle multiple tires in a row, or frequently. I also would not rely on this pump for off road, back country applications, such as lowering and raising tire pressure for terrain. I also wouldnt expect it to fill a paddleboard.

I chose this tire inflator /air compressor because the last one may have been “small and conveniently portable” but it was also such a waste of time and a definite waste of money! As soon as this guy arrived at my residence I opened the package and immediately started to check my tire pressure- which was SO low- then got my tires pumped up to their optimal pressure. MAN, I completely forgot how much better my car drives when my tire pressure is right as rain.

I got this tire inflator because I live in an urban environment where there are fewer and fewer gas stations nearby -- and even fewer still that have functioning tire-inflation stations. Or you need about a dozen quarters to use a pump for one minute, and then it stops. But I also figured I might need to use the inflator for purposes other than just my car tires, so I wanted it to have an alternate power source. This product comes with a rechargeable battery, or you can use a cable to connect it to the cigarette lighter in your car. I charged the battery, and started reading the instructions. What wasnt clear (maybe only to me) is that in order to use the battery pack, you first have to push a button and slide off the attachment at the bottom of the inflator that has the cable car charger on it. Then you replace that attachment with the battery pack. Press the button to turn it on, toggle through the modes (the first one is bicycle mode), press the + or - keys to raise or lower your intended PSI goal. Then press the trigger on the handle to start inflating. Its fast... and loud. But it gets the job done. I was going to keep it in my trunk, however, its larger than expected. You certainly cant take it with you on a biking trip. This is ideal to take with you if youre going on a long car trip and you might be far from a gas station tire inflator if you need one. Its also really handy at home if you need to inflate an air bed, a raft, or something else thats large, and you dont want to pump the air manually.

I like this product. It’s very handy and convenient to have around in case you get a flat tire of need to fill something with air. I do wish it came with a carrying case/box to keep it all neat & organized (even just a simple one). But overall i’m happy with it.

I wanted a small compressor for two tasks, topping off car tires and filing bicycle tires. This one tucks away easily in the car so its always available. Power comes from either the lithium battery pack or a 12v accessory plug adapter. The battery charges via USB-C, preventing the need for yet another charging brick. My existing chargers work well with it. Controls are not obvious but can be figured out. Tested it by topping off the tires on my less used car. One tire was down about 3psi. It took about 12-20 seconds to get it up to pressure. Unit automatically shut off when target pressure was reached. Checked the pressure with a calibrated gauge and it was within 1/2psi. It is noisy but I havent found a compressor yet that wasnt. It comes with adapters for inflating sports balls, floatation devices, and a Presta to Schrader adapter for some bike tires.

This is a winner. Lightweight, quick charging, and powerful. I just got back from a trip to the Outer Banks and used this pump to refill my tires after driving on the beach. I’ve used other pumps in the past, but AstroAl put together the top dog here. I won’t leave home without it.

So my old air compressor I used to carry around was not digital, was much bigger, and kind of annoying to lug around. This, by comparison, is smaller, digital, and fairly easy to use. The fact that it comes with both a battery and an auxiliary socket power adapter is a nice bonus incase the portable battery happens to be dead. Running on battery power, I can just easily walk to each wheel without being tethered by a lengthy power cord to the inside of a car that has to be on. I used it to check my tire pressure and as it turns out, the dealer (who recently did a TPMS sensor recall on my car) had overinflated my tires. Not having to have a separate tire pressure gauge and compressor is also a nice plus (the pressure sensor in my old compressor was very inaccurate) and the quick connect/release is a blessing. Overall, I really like the design and function of this and give it high marks. It has earned a spot as the permanent replacement for my old compressor.

This thing is fantastic! Its way more powerful than I expected it to be, but also super lightweight. Weve used it for bike tires and a leaky truck tire and its been awesome not having to pay at the gas station or pull out our bigger air pump every time we need to air something up.

I was skeptical that something so small would work, but this device has proven to be really useful. In much less time than it takes to drive to a couple of gas stations and find a working air machine, you can break this bad boy out at home and fill up your tires. All you have to do is select the car setting, set the display to your recommended psi, then connect the device to your tire. Once connected, you will get a reading of how much air is currently in the tire. Next, pull the trigger and the device will auto inflate to the correct psi. I tested this on a car, truck and motorcycle and the psi reading seems to be pretty accurate. The device also has a button for a light, which works great for nighttime usage. There are settings for car, motorcycle, bike and basketball and it includes the different tips you might need for each. I used the rechargeable battery pack, but there is another attachment that allows you to use a cigarette adapter in case you’d like to leave the device in a trunk for emergencies. The battery pack comes with a usb cable, but it does not include the usb to ac adapter. Not a problem for me since I have a million of those, and also a million things I could just plug the usb cable into, but worth a mention.