Fanttik X8 APEX Tire Inflator Portable Air Compressor, 1 Min Fast Inflation, 150PSI Cordless Tire Inflator with LED Dual Screen, Suitable for MPV, Car, E-Bike, Motorcycle, Up to 26.3″ Tires

I bought this to take along on motorcycle trips. But I found myself using it all over the garage. And I have a full size 60 gallon Ingersoll Rand air compressor. But I like best is that it's accurate as far as PSI and it doesn't leak half the tire pressure when you run screwing the hose from the valve like some other portable compressors I've had. The fact that it doubles as a USB power bank is a big bonus especially on camping trips. Yeah it's a little pricey but I find it very well worth the price.

Another reviewer captured my goal for this pump too. Modern cars with their tire pressure monitoring systems are valuable safety improvements but they are total nags. Every time you get a warning you have to drag out compressors and extension cords that are great for filling many tires from zero pressure but tedious to deal with when the pressure needed is a few pounds. On paper this pump and others from competitors look great for topping off tires when you get the pressure warning.The unit is not large or heavy but it is larger and heavier than I expected from descriptions. Its about the size of a water bottle and heavier because metal is heavier than water. The heft hopefully indicates a well built product that will last a long time, but no guarantees of course. I got the standard package which has all the bits that I need. If the battery rating is important to you then I don't know what to tell you. The advertising copy says 7800mAh but the product manual says 2600 mAh. It is also rated at 28.86Wh and 12V which implies 2400mAh. Doesn't matter to most of us but if you obsess over this you might be disappointed in this product.Upon receipt I charged the unit as directed. It does not com with a charger but you probably have a shoebox full of USB chargers you can use. It appears the unit can accept up to 3A but I charged mine from a 2A USB charger just fine. If you use a lower current charger your charge times will increase. I didn't carefully note the charge time on mine but after use it charged from 1 bar to full in about 2 hours.The thing that prompted me to buy this was of course the pressure warning on the dash on one of our cars. They were last filled when temperatures were around 90F and now they were around 30F. I needed to put 7 psi into two tires and 8 psi into the other two. They are 225/65R17 tires. The hose and adapters seem high quality but of course no adapter is needed for Schrader valves on car tires. The hose is long enough to reach a valve at the 12 o'clock position on my car and would reach a valve a few inches higher. The unit is heavy enough that you probably would not want to let it dangle from the hose. The unit is easy to operate and the instructions are clear. I filled four tires in 15 minutes. You connect it, turn it on, and you can then do other things until it shuts off. It is a fire and forget weapon in other words. The battery meter had dropped to two bars when the fourth tire was finished.Well, it wasn't complaining but we have another car which had last been topped off in the summer so tried to fill those tires with the remaining charge. They are 205/55R17 tires and one needed 5psi, the others 6psi. It took about 10 minutes and the battery meter was flashing as it completed.So, I am happy with the purchase. It does exactly what I needed to do and it is much less fuss to use than my more capable compressors. I might not be able to top off both cars on the same charge when they need it but that is a minor inconvenience, especially since they rarely both need it the same day. I have not used it on bicycle tires but the nice Presta valve adapter should make that easy. I also have hand truck and snowblower tires that need filling and this should do those just fine too.It's a few days later and snow is coming so I used the pump to fill the tires on the snowblower. While I was at it I filled the tires on our hand truck and two 26x2 and two 29x2 bicycle tires. It made short work of these smaller tires and it took 1 to 1.5 "bars" of battery power. It was very easy to use on these small tires too, the Presta valve adapter worked perfectly. I forgot to mention it before but I don't happen to have a lab grade pressure measuring gauge so I compared the pressure the pump produced to a medium quality analog dial gauge and a typical digital pressure gauge. These three consumer devices agreed to within half a psi.So it is accurate, easy to use, and works quite well for filling a wide variety of tiresl.

Everyone should have one of these in their car. Can pump all four tires from less than 30psi to 40psi on full charge, and do it faster than with car outlet air pump. Plus you can use it in your garage with the door closed because you don't have to turn the car on to use it.

This is awesome. I can fill my tires up anytime and anywhere with no problem. Being a woman and alone I feel safer to not have to find an air pump that cost $1.50 with quarters. I don't always have quarters on hand so this device is awesome. I would recommend this for sure.

Used it twice on my car (RAV4) .. first time one of the tires was only at 24 PSI, no problems brining it up to 33 PSI, so seems to work well (and while not quiet, not crazy loud either .. I'd just move away from the unit if I can).It has a manual mode and several other modes (car, bike, ball, ). These modes have default PSI values set, e.g., car 36 PSI. Unfortunately, while you can adjust the value in the mode, it won't remember this, so every time you get in the car mode it will be 36 PSI :-/ .. not being able to set the default makes these modes worthless IMO, so one star off.I believe it will remember the last value used in the manual mode - the other modes are nice, but pretty much worthless if their default values can't be changed. (I confirmed with the company's tech support because I thought I might have missed something in the manual. They confirmed you can't enter new default values for the various modes.)