Electric Air Compressor Portable Bike Pump Car Tire Inflator, Max 150 PSI, Auto Shut-Off Air Pump with Presta and Schrader Valves for All Bicycles Motorcycles Balls and Cars

Working very good Thank you

Just received today. Charged up, and inflated my ebike tires. Nice compact size, comes with a little pleather bag for it. Feels like good quality.Will update over time if I have any issues, but not expecting any. Seems solid!

It's portable, fast, and a whole lot easier than using a hand pump and pressure gauge on pretty much anything. There are even presets for things like bike tires, inflatable balls, car tires, etc. And if none of them match your specifications, you can adjust it manually. Overall, it's convenient and great. However, it does eat through a full battery pretty fast. You can probably fill 2 26" bike tires from empty a few times. A fat tire bike maybe twice. I'm not sure about filling a car tire from empty, but from flat, maybe once. It's small, portable, and convenient, but it's probably not the ideal choice to keep in your car for emergencies.

I've learned from getting a flat tire on my street motorcycle when I was literally miles away from civilization that it pays to be prepared. Thanks to the plug kit and battery rigged pump I carry in my motorcycle's saddle bags; I was able to plug the hole in my tire, reinflate it, and go about my day.Due to my right knee acting up from pedaling motion, I stopped riding bicycles years ago, but recently got an e-bike. I'm stoked to be riding a bicycle again and the bike's electric motor helps keep my knee from complaining. This translates to me being able to ride for 20, 30 miles or more with no issues, so I wanted some tools to be prepared. I put a rack on my bike, rigged a bag to it, and keep some tools, a spare tube, tire levers, and a hand pump in that bag. One day, I went to ride the e-bike only to find it had a flat tire. I had the bike in the basement, away from the air compressor so I had to use the hand pump.I inflate my tires to 50 PSI... Doing that with a hand pump was not fun, so I decided to go electric. The pump I keep with my motorcycle has to be rigged to the motorcycle's battery for power but isn't feasible for my e-bike. So, I got this.In summary, I'm very pleased with this pump. So much so that I've foregone the pump I kept with my motorcycle, and just transfer this pump between e-bike and motorcycle, depending on which one I ride! The manual is really bad though, and even has misinformation.This pump is quieter, more portable, and more efficient than the pump I kept with my motorcycle! The old pump needed its long wire leads with alligator clips to connect to a 12-volt battery, it's painfully loud, and it takes minutes and minutes to just add a few PSI to one of my motorcycle's tires. This pump is surprisingly quiet for its size and only needs a minute or two to top off my motorcycle's tires and even less time to top off or even fully inflate the e-bike's tires. It's ability to store its air hose within itself and not needing to be connected to an exterior battery makes it very compact.So, you might be thinking "Okay, you're gushing about this pump. Why four stars?" The second part of the review title is why.Not only is this manual written in horribly broken English, but it also flat-out misguides you. The case in point here is the built in LED. According to the manual, you press the LED itself into the housing to active it.I tinker with electronics as a hobby, so my gut warned me something was off; you don't control a light source that way. I should've listened to my gut.I pressed the LED in, and not only would it not work, but it also made the screen start acting weird. Once I got a replacement, I disregarded the manual and figured out how to use this myself.I advise doing that. This pump isn't hard to figure out. The "U" button toggles the pump's unit of measurement (PSI, BAR, kPa, etc.), the "+" and "-" buttons set the pump's target pressure, and the "M" button toggles the pump's memory of presets, which are denoted by icons: A basketball, a bicycle, an automobile, and a "User" setting. All of these can be adjusted and so long as the pump's battery isn't fully drained (I don't recommend doing that- this pump has a lithium battery!), the pump will remember what you set each preset's target pressure to.So, how do you turn on the light? Simple, hold the "U" button until the LED turns on. To turn the LED off, again hold the "U" button until the LED turns off. It's not a flashlight, mind you, but for lighting up a shadowed wheel to see it's valve stem, the light works great.As far as accuracy goes, this pump seems to measure AND pump to target pressure pretty accurately as far as I can tell. I just have a cheap electronic tire pressure gauge, and my father loaned me a cheap slide plunger type gauge, and this pump matched them both within a few PSI again in both measure pressure and target pressure. I've only used the pump to inflate my e-bike's front tire that one time so far, and an occasional top-off to my e-bike's and motorcycle's tires. But again, this pump has a high-capacity lithium battery, so I will not be testing how much I can use the pump on one charge because I don't want to ruin the battery from over discharge. I would hope the battery has a BMS with over-discharge protection, but I'm not going to assume it does.So again, now that I've disregarded that sorry excuse of a manual and taught myself how to use this pump correctly, I am very pleased with it. Again, so much so that I just take this pump with me packed in whatever vehicle I'm riding, and I leave that noisy old pump I kept with my motorcycle at home! If you need a portable pump for car, bicycle or motorcycle tires and lower pressure items like sports balls, this little pump is awesome. Great as it is, I wouldn't try to use this for SUV/small truck tires, let alone large truck tires though.

This works very well. Its fast, pumps high pressure and feels durable. The product is small enough to carry in a backpack easily, but a bit large to connect to a bike. Auto shut off is good and the attachments work well.

First, the unit is compact and well made. Using it is NOT so intuitive, so guys, read the instructions. Once you get past that, the actual use is very easy and convenient. My electric bicycle tires fill automatically to the pressure that I have preset, and then shuts off. Likewise with my 38 PSI car tires. Again, I had the car mode preset to 38 PSI and I topped off all 4 tires without a problem. Even though I have a compressor and long air hoses on reels, I find it much more convenient to use this little automatic pump. The short air hose and screw on Schrader connector is also well designed. Bicycle tires do not have much volume, so getting the hose disconnected can cause enough loss of air to make you unsure of how much air you actually have left in your tires. Not so with the screw on valve on this pump's hose. It works better than ANY connector that I have ever used. I am very pleased with this product!

Though I am in a wheelchair I lead a very active lifestyle and have aggresive tires on my chairs. I have always wanted a reasonably priced, compact, rechargable air compressor with some power to it for traveling.This really seems to fit the bill.As soon as I got it, I put it on the charger till fully charged. Then I went to test it.This pump filled my 26x2 inch wheelchair tires from 18 lbs to 37.5lbs in less than 30 seconds. Did the same for my other chair. Total of 4 wheels. Then the real test was 90lbs on my 4X4 truck bed which took little over 3.5 minutes to go from zero to 90lbs. After that I hooked it up to a couple of regular 26x1&3/8 chair tires that were totally flat and it took about two minutes for each tire.Finally I went out where my SUV had a low tire. It went from 21psi to 32psi in about 3.5 minutes.ALL THESE WHEELS ON ONE CHARGE.Be warned though, it gets HOT after 3 minutes so you need to let it cool down between those longer lasting jobs.Also, to turn the light on, use the bottom button (M) to activate the "light icon" then hold down on the top (U) to turn it on. See pictures. The directions are very scetchy on how to go this.Overall this brand of compressor air pump is a great value for the buck. Reliable, powerful and compact.

Very convenient, works well when charged. Dislikes: loud, tube gets hot to the touch, doesn’t hold the charge, stopped working 2yrs later with only maybe 20 uses.