Unbelievable that these continue to be sold on Amazon.
Sellers offer free stuff and discounts for positive reviews, it is no secret for anyone who bought anything on amazon. I always read negative review, cuz they are honest, no one pays for negative reviews.
I got similar pump from temu for 30 bucks iirc, I only use it for bicycle tires, so far it seems to do its job.
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I’m quite similar.
I read non-5-star reviews to figure out what people are complaining about.
If they’re complaining about things that I don’t care about, that’s usually a good sign. 
If no one is complaining about anything, then either there aren’t enough reviews for the product, or the reviews might be fake. 
Is that video an AD? Really feels so…
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Thanks for the video link, it says:
“the Denvix came out on top inflating all four tires”
that is pretty impressive, as it raised Four tires by 20 psi each…
These inflators are convenient to do a quick top-up when your TPM squawks, or if you have a slow leak. Don’t expect to be able to do more than 10-20 psi, or half of one tyre. You should keep a 12V car battery-powered one on hand ($30 or so) in your trunk for more serious use, or one of the power tool 18V battery powered ones (I have both Ryobis, which are great).
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These tiny battery things look like something that drivers of EV’s with no spare tire might be interested in. But they’re probably a bad choice for most people. You already have a power supply with the car. Use it.
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Yes, the Ryobis are great. I actually pumped an rv tire up to 75 lbs. with mine. I don’t recommend that. The hose became too hot to touch. I’m probably lucky the tool survived.
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As far as batteries are concerned, your car has a good battery. You just need a pump that preferably hooks up to the battery terminals for high amperage. Viair makes some good one.
agree…
bearing in mind that the longer the unit runs, the hotter it gets…
if someone needs to add 20 psi to a single partly flat tire, that is a different duty cycle, and a cheaper pump is sufficient, than airing up 4 separate offroad tires by 30 PSI each, which requires a larger and more expensive pump, such as the Viair 300P.
The 300P draws so much power that it has to be clamped directly to the battery, While the Motor is Running, or it will leave you stranded with a dead battery.
If you don’t need to inflate a tyre from completely flat I feel that there is a case to be made for the good old-fashioned foot-pump.
I keep considering buying the Ryobi high pressure inflator, but everytime I start to get serious about it, I remember my bicycle pump really works just fine. Sure, it takes a while to fill an badly under-inflated tire (which at one point I was routinely dealing with for several weeks until we had time to get into tire store to fix a leak), but it’s far from a grueling chore, the small amount of exercise isn’t bad for me, and it is far quieter than most electric tire pumps.
A foot pump is probably a little easier for large fillups than an upright bike pump.
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I actually have an electric tyre inflator that plugs into the car’s lighter socket but I usually still use the footpump because it’s less of a faff than having to coil and uncoil the wires. It’s quieter too.
I was after something that I can charge from the lighter socket but works wirelessly as a jumper pack and inflator. My van is lwb and the wired inflators don’t have enough cable. I got one of these and there’s no way it’s going to pump tyres from flat to 60psi loads of times, but it’ll get me out of a jam.
It’s easy to see those little ones are going to be junk.
The only battery-powered tire inflator worth considering is the Milwaukee 2848. However, I strongly recommend replacing the air chuck with the LockNFlate.
I bought a foot pump once from ACE hardware, the thing literally broke apart within few dozens of pumps, complete junk, and it was not cheap either. than I bought one on ebay, looked great on the picture, but was junk as well. I like the Idea of foot pump, but the way they are made today, I’ll pass.
Mine’s probably about 20 years old, it’s not as well-made as my dad’s ancient one but it’s probably still better than you can get now.
I tried buying a hand drill a couple of years back, most of what I want a drill for is occasional light use and cordless ones don’t like not being used for months at a time. It proved difficult to find one at all and the ones I did find felt cheap and flimsy. In the end I bought an old Stanley one off eBay, it’s older than I am and is built like a tank. It’s hard to find quality stuff these days. 
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Amazon has joined the race to the bottom.
The video in the original post was made and posted by an Amazon Associate who makes money off of customers who purchase the products recommended in their videos. This video recommends one of the inflators featured in the video. Anyone who knows anything about small electronics and batteries would know that these small inflators are not reliable for doing anything except topping off a tire that is a little under-inflated.
Like others who have posted, I use a Ryobi inflator. It costs more than these types of devices, but it is reliable.
Everyone who has shopped on Amazon for more than one day is aware that third party sellers make untrustworthy claims on their product pages all the time. You have to do some research into what you are buying and be skeptical of many of the claims made. Amazon obviously does a poor job of discouraging untruthful claims made on its site and preventing sellers from compensating customers for reviews. I’ve notified Amazon about several sellers offering to compensate me for reviews, which is a violation of Amazon’s rules for sellers, but I don’t know if the company took any action based on my reports.
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