SMAOUT 12V Air Compressor, Offroad Portable Inflator 12.3 CFM, Air Pump Max 150PSI for Heavy-Duty Tire, 4x4 Vehicle, SUV, RV

Build quality exceeded my expectations. It is very solid with excellent fit and finish. The hose is very flexible and excellent quality. The fittings are also excellent. The battery clamps are adequate—good. It is much quieter and smoother than I expected. I was able to fill my space saver spare from 0 psi to 60 psi in 34 seconds. Everything rolled up nicely and packed back into the bag nicely. I

Awesome. I needed a dependable pump to add air to our truck and rv tires. Needed to be capable of 80 to 110 psi. I was surprised at the heft and quality of this pump. Brought the truck tires to 80psi with no problem. Can’t vouch for reliability but looks great to me.

Used it a few dozen times. Couple of emergencies. Has worked well. Let you know in the future.

I use this to air up my 35x12.5x15 tires after deflating them for off road. It does the job remarkably fast. The digital setpoint control is simply amazing, and accurate, just set it and forget it, so you can go do other tasks while the pump fills your tires to setpoint.This pairs nicely to the Optima Yellow Top battery, which can be deep cycled with the vehicle off. If not using this battery, I would recommend leaving the vehicle running.This is big and built for heavy duty use. This is not the pump for the emergency air for your Prius. Get something smaller. This is for filling up BIG tires fast.

Just tried out this product on my class C RV and I am so impressed. The quality is top notch. It’s very heavy because it’s made a lot of metal. I connected it to my tire I set my desired psi to 70 and it went from 60 to 70 in about 35 seconds. This is truly a great product it does exactly what is advertise.

So I just got this 2 days ago, but I did get to use it today. Went to an offroad park and had my 35s aired down to 7 PSI. It took 11 minutes to bring all 4 tires up to 35 PSI each. So 112 PSI in 11 minutes, or 10 PSI per minute. It does get hot after, so I let it cool off before packing it up. Very heavy duty unit. So far, I'm a happy jeeper!

Just received the dual cylinder air compressor. Tested by pulling valve stem core out of one of my 315/70r17 (35x12.50r17) tires i have on my jeep. Once empty, reinstalled valve stem core and tested the compressor. after 1 min had gone from 0psi to 13psi. After another minute i was at 24psi. after 30 more seconds i was at 30psi. i stopped and checked the built-in gauge with a second gauge. both read within 1psi of each other. So in two and a half minutes it filled my tire from zero to 30psi. And went from a trail pressure of 13psi to a highway pressure of 30 psi in 1.5 minutes. for me that is plenty fast. and if my math works once i get a 4 tire inflation system i could air up in around 6 minutes. If this lasts for a few years it is for sure a winner. time will tell though.

I was not planning to write a review for this portable air compressor. I purchased it with my own money after researching lots of options. It just seemed like a good balance between features and cost. I decided to get it out and test it just to be sure it worked. I really appreciate that it has controls to set the air pressure desired and just turn it on and walk away. It stops a few times during inflation to check the tire pressure, and I tested it 8 times and every time it inflated each tire from 20 to exactly 35psi, verified with a separate gauge. I expected it to be so much louder that it was, it was not really very loud at all. And due to its size, the sound was less high pitched that I expected too. It was very fast to fill the tires, and it was also extremely easy to use. It comes with instructions, but you just connect it to your battery, set the psi you want, attach the house to the compressor and tire and turn the power on. It's pretty large and heavy, not really something you would want to carry in a little car for little car tires, but for SUVs and trucks it is fantastic. I can't speak to longevity yet, but it says 2 year warranty which is longer than many other brands, and based on my initial experience I have no reason to think it will not last much longer than that with moderate usage. It did get warm so I let it cool down before I packed it back away in my vehicle.