I had a cheaper version of this which was about half the price. You very much get what you pay for. I've used this thing from everything from filling up birthday baloons to inflating the tires on my Tesla (42 psi on a 2.5 ton vehicle). It comes in a nice zippered case with all of the accessories pictured with it. Since my car doesn't come with a spare, I keep this and some fix-a-flat on hand. I've even used it to inflate every morning whne I was driving around with a slow leak and Tesla service takes 1+ weeks to get you an appointment for a warrantied repair. I'm sure this is some kind of Chinese gadget someone imported and slapped a name brand on, but they hey.. they deserve to make some money. Good find. Good product. Read more
The media could not be loaded. I got a really bad puncture in my tire. I didn't get run-flats, like Cadillac warned me to do. So I was stuck with a flat on a car that's not supposed to be jacked. A work colleague had a similar product that he let me use to inflate the tire to get the car home, but I didn't have a way to fill it again to get it to the tire shop. So, I decided to order one for myself. I did a lot of research on these things because the one I bought awhile back only added a few pounds to tires that were barely low at all (28lbs to 36lbs) and I was worried about being stranded while waiting on AMAZON'S HORRIBLY UNRELIABLE DELIVERY. Even if your order is supposed to arrive "next day 2am-11am" when you click it, it often switches to "Tomorrow" after its processed and then won't arrive for up to a week later. So, I had to make sure I got it right the first time and then pray it arrives on time. Anyway... My colleagues was able to fill the tire from flat to 35lbs in just under 20minutes. Wolfbox's took almost exactly 5minutes!! Its much bigger and heavier than I expected. About 175% the size of my colleague's. I hated that at first, but now that I know it fills my tire in 25% of the time it took the other one, I see that it's big for a reason. Besides, it's big, but not "too big". Seems to be well-made, as far as the look and feel of it. However, Im gonna be careful not to drop it on the concrete from ANY height because it's plastic and Made in China. That means cheap materials, cheap labor, and typically minimal quality-control. Based on some of the other reviews, its safe to assume the quality-control is lacking. So, you'll wanna be careful with it and monitor the inflation process. HOWEVER, if you shop on Amazon, all of these negatives are typical of 99.9% of the stuff sold here. So I'm not gonna take any stars away, due to the extremely low manufacturing standards these days. If they'd let me take away just ½ a star I'd do that because they could sell it for ½ the price and still make a profit. This product shines due to great engineering, not production. Im gonna have to fill up at least once more because my run-flat tires weren't in-stock yet, and I'll need to inflate my kid's bike tires soon. I'll make an edit if there's any issues. Read more
Great little air pump. Looks well built and seems built well. I will update after using. Read more
It's heavy duty. Filled up my tire from 19 to 41 psi in about 7 minutes with charge left. Works great! Read more
I’ve only used it once so far, but it’ll come in handy here in Chicago. Our temperatures fluctuate quite a bit in the winter so keeping tires inflated properly is a challenge. I read a bunch of reviews and settled on the Wolfbox because of it’s power and durability. Read more
I had an issue with one of the units as it works fine at first but then started over pressing my tire, I reached out to wolfbox and they promptly sent me another device. I use it to inflate my 35s as one has a slow leak and it will go from 20 to 40psi in just a couple minutes. Read more
Its well worth it a little loud but it is a tire inflator well built has weight to it cant beat the price and comes with extra nozzles for other inflatables you may have this one great product from wolfbox i recommend it. Read more
All four of my Tesla Model 3 tires were low by 6 to 7 PSI. The inflation speed was acceptable though much longer than if I had a traditional air compressor. Maybe 5 minutes per tire? The MegaFlow stopped when it reached the 42 PSI target that I had entered manually, so that's good. But when I measured the pressure using using a new top-of-the-line Slime pressure gauge, the gauge said each tire was at 43 PSI. So either MegaFlow's pressure sensor is off by 1 PSI or the new Slime gauge is off. The latter is a nice gauge because it prevents air leakage when taking a reading. Attaching the MegaFlow's air hose to the tire requires using the Quick Release adapter. The MegaFlow's manual describes and some videos online show connecting the MegaFlow by screwing the air hose directly onto the tire's stem, but when I tried that a lot of air escaped in the process. It's impossible to screw it on fast enough, which means unscrewing the hose will likely lead to significant air loss. I cannot imagine how people connect the threaded end of the hose directly to a tire stem without air loss. But the Quick Release adapter disconnects quickly so there's minimal air loss. CONNECTING the Quick Release to the tire stem is tricky, partly because the Model 3's tire stem is quite short -- but it is doable with some air loss. Who cares if a little air is lost, because you're adding air anyway. The only problem with having to use the Quick Release adapter is that if you're off by a pound or two, you can't simply press the fitting against the tire stem and add a little more air. The MegaFlow should come with non-Quick-Release fitting. By the time I disconnected the MegaFlow from a tire, restored that tire's stem cap, then unscrewed the cap on the next tire, the MegaFlow had powered off. So I had to turn it back on (long press), and use the + button to increase the target air pressure from the default 36 to the needed 42. Holding in on the + sign causes it to increment quickly after a second or two, which is good because going from 36 to 42 in tenths at the normal rate would be really time consuming. The lesson here is: quickly move from tire to tire to avoid it powering down and losing the target PSI setting. After 4 tires the MegaFlow's battery charge state indicator said it was at half charge ("2 bars" -- assuming "4 bars" means full). The only other complaint I have about MegaFlow is that turning on the actual compressor motor by pressing the power button momentarily is finicky. Half the time the motor would start up for a second and then stop. Pressing the button again usually gets the motor to start and stay running, but sometimes it turns the whole thing off, which means you must start completely over (long press, power up cycle, select target PSI, etc). Read more
