AstroAI L4 Tire Inflator Portable Air Compressor, 150PSI Portable Air Pump for Car Tires with Pressure Gauge LED Light, Electric Air Pump Quick Inflation for Cars, Motorcycles, Bikes, Tires, Balls

I bought this item because it was listed on the car and driver site, as one of the top 10 tire inflators. It uses C-type charger cord to charge, it is cordless and compact. The was very easy to charge and use. I've used mine several times because as you know your tire pressure changes with cold temperatures. I really like how compact it is and that it comes in it's own storage bag with adapters. I've had to use it on 2 vehicles on the same day and the battery lasted. I only had to fill 2-5psi on each tire. I'm hoping that it will continue to last when not in use during the season changes. I may update my review in 6-9 months.

Highest quality manufacturing, easy to use, works perfectly every time.

There's a slight underreading in the tire pressure possibly caused by the "large" adapter that connects the inflator with the tire valve. Yet, it works well with every type of tires and balls. It is reasonably fast for large tires (I tried it in R16 and R17 tires), especially when you only have to inflate a few PSI. But be careful when overinflating because it will if you don't take into consideration the length of the cable.

I love this compressor! Impressed enough to write a review. I am someone who frequently checks and tops off the tires and spare tires for our cars. This battery powered compressor is so much more convenient than the 12V wired plug-in products I used to have. So much quicker to walk around the car and use. I like the design - I just set the desired PSI, attach it, and it fills if PSI are needed. Fits well in my hand and the light at the end is useful in dark parts of the garage. I was concerned about battery life but it seems good - I used to add alot of air to 2 temporary spares and then topped off 8 car tires and was just under 50%.

I have bought larger units, either using the cigarette lighter or 120 V plug for power with analog display. This unit is far superior. Sturdy lithium battery — set desired pressure digitally. When it gets there, turns off! Perfect. Just as fast as my much bigger and more expensive gadget.

This is exactly what I have need! Excellent quality!

Excellent compact inflator unit. Digital read out and automatically shut down when desired psi is reached. Easy to set psi, easy to operate with one button inflation. The only drawback is the inflation hose and locking chuck is too short. You must hold it in your hand while it fills the tire. This can be awkward if the wheel is at an odd angle. Overall, very happy with the performance, noise level and size of the unit.

Was looking for a battery-powered inflator because it's a hassle to plug in a 120v model, scooting it around the garage, and trying to read the dial gauge. The AstroAI solves that problem. It is simple to use--you can set a desired pressure for car, ball, mattress. You turn it on and it inflates to exactly that number. The display is very clear and easy to read. It is the most convenient thing in the world for topping off four tires.Has a bright light on top (can also flash red) for that dire nighttime roadside scenario. It can also be used as a power bank, which I supposed could help in an emergency.The only limitation is that it is relatively slow to inflate. Relative to a wired inflator; still faster than a hand pump. So this would not be ideal for filling four completely flat tires (although it could in a pinch). But to put in the trunk and take out once a month, or to have in an emergency, perfect.