Side by Side Comparison of: Kensun vs Car and Driver

I have had this compressor for over 2 years and it has served me well doing the jobs I purchased it for. It is good value for the money. Recently I developed a couple of issues with the unit which was rendering it almost unusable. I called Kensun customer support and even though I was unable to provide purchase details they were able to look it up and I was out of warranty. After I inquired about any repair service availablilit ythe customer service representative offered to replace the unit for me even though it was out of warranty. Amazing customer service from finding my purchase with just mailing address to the offer to replace. I will look for Kensun products in the future for sure.

I have only used this item x 1 since I received it. I added 5 pounds air to each of 2 minivan tires using the AC110V plug. It took no more than 1 minute to pump in the air to the proper tire inflation. In the past I used a manual tire pump which took about 5 -10 minutes per tire to pump the same amount of air into each tire . The gauge on the Kensun air compressor indicated when the desired tire pressure was reached The pressure gauge on the Kensun air compressor gave me the same readings as my manual tire pressure gauge.The Kensun air compressor also comes with on/off switches for the DC 12V and AC 110V depending on which power source is used to power the Kensun air compressor.It also comes with:1. a 4.0m cord with AC 110V plug2. a 3.0m cord with DC 110V cigarette plug3.DC 12V socket4. a 1A fuse for AC 110V5. AC 110 V socket6. adapters for car tires, balls ,inflatables, PVC boats7. a carrying case Kensun customer service emailed me shortly after I received my air compressor. They wanted to know if everything was ok with my order and to contact them with any questions or concerns. As it turned out one of the plastic components of the DC cigarette plug that had been shipped with the Kensun air compressor had been broken into multiple pieces. I emailed Kensun about this with attached photos of the broken DC cigarette plug. Kensun emailed me back and stated that they had already sent me a replacement DC plug. I had not requested a replacement in my email to them. Kensun did so on its own volition. I also noted that the Kensun air compressor and accessories were extremely well packaged for shipping with lots of padding.As I said earlier, I have only used this compressor X 1. At this point in my ownership of this product, I would have to give 5 stars to Kensun air compressor and Kensun customer service.

Filling Station Pumps are harder than ever to find, often broken and always cost money. Enter Kensun - this product has a ton of of features:1) In includes the adapters to power it from your CAR or your HOME.2) Included Gauge is easy to use and read and accurate enough to be safe.3) A person who has never a powered inflator will understand it 1st try.4) The included adapters will help you with your sports or pool equipment.5) It is small and includes a good quality soft storage case which makes it easy to stow away (i.e. trunk) and is worth its weight in Gold when you need it!6) I had a problem on the first unit that was shipped - but this seller contacted me back and fixed my problem immediately and helped me BEYOND what I expected. Credit card points, being busy and being a person who loves shopping that consists of finding the lowest cost products neatly stacked at my front door makes me shop Amazon heavily. This seller/product's item and customer support grades A+ as compared to the hundreds of products I receive via Amazon Fulfillment annually.RECOMMEDED

Needed to put air in my tires. When we had a bit of a cold snap the Low Tire Pressure light lit up on my car's dash. Tried using the coin operated air compressor at the gas station to inflate the tires, but that didn't work. I decide to check out tire inflator air compressors here on Amazon. After checking out many models available I decided to purchase this one. I like that it can be used with a regular home outlet and with the 12v car plug. Also liked that it looked like it was solidly built, based on the photos and the other reviews on here. Also liked that it can be used for bike tires. It came in a black storage bag, and included the 110 v home wire and the 12 V car plug. Has a separate on/off switch for each power source. Also came with other attachments to fill up balls and other inflatables. Directions are minimal, printed on a small piece of paper. Don't know much about cars or specs on tires or air compressors so i just wanted something that would be easy to use and decent value.Basically, after checking the tire pressure needed, I lugged the unit in and connected it to the tire. Turned it on and noticed a few things. It's rather loud. It vibrates a lot so that when you're looking at the gauge the needle vibrates as well. . Topped off the tires in a few minutes and used a tire pressure gauge to check the tire pressure.Was a good deal for the price. Handy to have in the car when needed.

Believe it or not this is the first air compressor I have ever purchased! I always have done it the 'hard way' & pumped up all of my bicycle tires with an ordinary hand pump. A friend saw me struggling away & recommended the Kensun D1002 AC (Home 110 V & 12 V car.)This piece of equipment is very easy to use with a very accurate & easy to read gauge, an easy to attach pump hose, & a power cord that is certainly long enough to make most job's accessible. I only wish I would have purchased this a number of years ago & I would have saved myself a lot of hard work!

I now own 2 different models. 1 is AC/DC and the other is DC only. They are both excellent products. Both have a solid weight to them so when in use they don't vibrate around. Both have excellent connectors. Both units pump air extremely well. Both units are reasonably quiet.The DC unit comes with a light and a programmable tire pressure gauge. Another outstanding feature to mention about Kensun is their customer service. Here is a pic of the 12v unit. Hope this helps.

Excellent portable air pump very lightweight and sturdy, pumped up my Velomobile tires to 96 PSI in less than 2 minutes. Will buy again yes!

I had this for almost a year before I needed to use it but when I did, it worked just as it needed to. It pumped up an almost flat tire which allowed me to drive to the tire store and have the flat fixed. No tow truck required! Very happy with it.

Bought to leave in my Jeep. It is slow to air up a vehicle tire but better than nothing when you are not close to home or town.

This pump is fast when I leave my car running while pumping up my tires. I went from 30 lb to 50 lb in 10 seconds. The air hose for this thing is a little short for a huge tire, but it is OK for my 17" tires. It comes with various tips for pumping up other items besides tires, which will be a benefit to people with other needs other than being sick of having to pay money for air. I will be buying this pump as a Christmas item for my friends as it is really handy to have.

works pretty good for what it is, though the guage is a bit off. (I don't think I have ever seen one that is correct on these inexpensive compressors). Note, it will take plenty of time to fill your tires with this. It is good mainly for emergencies, and can only run for about 10 minutes at a time, before cooling for 30 minutes. Letting it overheat will kill it quickly. Usually on my 225-75 15s, it takes about two runs to get a tire from 15 pounds up to 40 pounds. Start your vehicle between runs to let it charge the battery back up! (Should not be used while running.)

Perfect size for the cargo area in our ATV. Haven't had to use it yet, and hopefully will not have an unexpected flat tire while riding trails in the wilds of Idaho, but it is comforting to know that I have this air compressor, tire sealant and plugs just in case!

I've had this mini air compressor for about a year. I had purchased the same model previously and really thought it was a excellent product. Back to the latest unit. About 6 months ago, the ac plug in the unit developed a short. Therefore, anytime I used the unit I had to physically hold the ac plug just right to inflate a tire. Okay, not fun but effective. However, this past Sunday I attempted to inflate/top off my motorcycle tire as it was about 5 pounds low. Halfway through the process, the compressor started smoking and quit. That was all she wrote for this unit.

In defense of Kensun, my original unit still works without any issues. I can only suggest that Kensun might want to review their quality control process because the 2nd compressor was a dud.

UPDATE!! KENSUN sent me a replacement unit FREE OF CHARGE! I've added 2 stars to my previous rating. Will update later when I've had a chance to use.

Well I thought this unit would at least last longer than the time it took to inflate one tire on my wife's car. After that, the unit began to smoke, made a loud popping sound, and stopped working completely. I'm returning it this week.

UPDATE. After reading my review a representative from Kensun reached out to me and offered to send me a better compressor for my trouble. I can't say enough about their customer service. I used it to inflate a couple of kiddie beach toys and a tow tube and it seemed to work fine. Much better than the first one I was sent.

UPDATE: 07/04/2016
Contacted the Kensun Customer Care dept. and explained the issue I was having with the air compressor. They will ship a new replacement unit at no charge. Have not received the unit yet but will update the review stars now to 4 stars (from 2 stars). The unit worked as advertised before it broke after 4 uses. I probably got a defective unit which they will replace. I give the Kensun company 5 stars for their excellent customer service.

Buyer beware!! This Kensun air compressor broke after using it only 4 times. Now the unit shakes and vibrates violently and the dial gauge popped out of its socket. I don't want to continue using it since the motor sounds like it's going to explode. I purchased this in March 2016 and I am not able to return this item to Amazon since the return policy for this has expired. I should have purchased the other air compressor from a different manufacturer that was selling at a higher price.

This is a very cool device that saves you a lot of hassle. I was always struggling to reset my vehicles' tire pressure at gas stations with those ugly age old pressure monitors attached to the Air stations. Inaccurate readings, inability to reach the spare below SUVs and constant hunt for quarters were some of my issues. I finally researched online and got this compressor. I now use this to top up air in my car tires in the comfort of my home, inflate sport equipments and it works pretty well. I settled for this as against the Slime 40022 because that had a digital gauge and there were some reviews on the readings not being accurate. This one has an analog meter which is pretty accurate (not down to the decimal). This is a 12V compressor which means it wont blow the fuse of smaller cars and SUVs (be careful to check what your car can support before you buy this or the bigger 15V varieties also on amazon). In terms of time, it took me about 10 minutes to inflate a dead spare from 10 psi to about 60 psi. I gave it a break in between just to ensure it does not get overheated. So if all is well, why did I take away a star? Some areas of improvement: 1. the screw on nozzle does cause very little air to leak out as you're screwing it on/off the tire. A clip-on version would be my preference. Sometimes the screw threads also need a little nudge before they agree to come off. 2. The length of the inflate tube on the compressor should be a little longer. I had to set the compressor on a little stool for nozzles that were to the top of wheel when parked. The length of the electrical cable is manageable even though a slightly longer one would have been ideal. 3. The weight of the compressor is too light and it has to be held down while it's doing its thing else it keeps vibrating and wobbling on the floor.
All these are minor issues but overall I am very pleased with the purchase and this works well for what it is supposed to do - INFLATE !

Bought the item in November but used it for the first time a few days ago. I was probably just into 15 seconds reinflating my medicine ball when the pump thumblock broke at the neck where it's connected to the air hose. The connection is made of plastic and just snapped when I applied a little pressure to keep the thumblock in place. Returning it for a refund.

===============REVIEW UPDATE: 1/12/15 ========================

I am upgrading my earlier One-Star rating to Four-Star for Kensun's EXCELLENT CUSTOMER SERVICE!!!!

A bit of history about this order.. I was actually looking for a unit with AC/DC power option and auto shutoff mechanism. I thought this item had both functionalities but it turned out the unit does not have auto shutoff mechanism. As early as Nov 18 (I received the unit in Nov 16), Kensun already offered to refund because they don't have any model with both functionalities I was looking for. However, I got side-tracked with all the holiday activities and forgot to request a refund until January when the unit broke after I used it for the first time.

I first tried processing a refund with Amazon's online return/replacement system but the system declined the request because the allowable return date has expired. Nevertheless, Kensun offered to replace the broken unit with a new one without me having to return the original back. In addition, Kensun offered a different model with digital gauge with auto shutoff function and worklight, ALL FOR FREE! With all that, Kensun still offers FULL REFUND if I am not satisfied!

Both the replacement unit and the new model arrived a couple of days ago. NOW THAT'S CUSTOMER SERVICE!!!

I have tested both units. Both units are working but the one with digital gauge auto shutoff function is much more powerful. It was able to pump in 5 PSI (from 27 to 32 PSI) in about 50 seconds with the body still cool to touch. The replacement model (without digital gauge shut off function) took 3 minutes to pump in 5 PSI with the body starting to get warm. I noticed with the digital gauge shutoff function that it has to be set at 2 PSI above the target PSI to attain the desired pressure. For instance, to get to my target 32 PSI, I found I have to set the digital gauge at 34 PSI. Once the digital gauge reads 34 PSI, it continues pumping for a few more seconds before it totally shuts off. Both units are not "quite operation" by any stretch of imagination but I can live with that.

I am keeping the replacement Kensun AC/DC Tire Inflator for home use since it has AC power option. On the road, I am bringing the model with Digital Gauge Auto Shutoff function since it's more powerful plus it comes with built-in worklight.

I don't know how both units will perform if tested with more prolonged use but for now I am a very satisfied customer.

For reference, I've tested the units with size 215/70R16 tires on my RAV 4.

Takes quite a while to fill a low car tire, but that goes with a small compressor like this. Built-in gauge is a plus. Overall, happy with this product at this price.

Works really well. Use it for emergencies and to pump up the tires on my manual wheelchair. Noisy but very handy. It is very compact and easily fits under the seat

Works fine for emergencies.

works good but guage is totally wrong. 220psi is actually about 100

Great to leave in car because it's small. Had a flat tire and was able to pump up my tire and get to the tire shop the next day. Great for emergencies, would deff recommend for everyone to leave in the trunk of their car

Works a heck of a lot better than manual pumping of a bike tire. It will inflate a car tire, though it will take several minutes, and it makes quite the racket, and the vibration makes it move around on the floor. Still, quite a useful little gadget to have around to pump things up.

I bought this product to store in the trunk for times when I need to fill up my car tires. I've had two other compressors in the past that have worked quite well albeit being very inexpensive. While this product itself is a fair price and includes a lot of additional accessories to complement the package, there are just a few things that are issues for me.Firstly, the compressor is incredibly loud. Your neighbors will definitely hear this and wonder what you're doing. This wouldn't be that big of a deal if it didn't take forever to fill up the tire. Over the past 3 months of owning the product, it has taken me nearly 30-45 minutes to fill up 4 tires with about 10 PSI each after multiple uses. This to me is just incredibly painful. Other than that, never had any problems with any of the cords and the air pressure gauge has always been accurate.Unfortunately, my time is precious to me so I will continue my search for a faster compressor. 3 stars for being functional.

The product works, but it is very slow. Adding just 2 pounds of air to a tire takes quite a lot of time. The unit is super loud too and not in a good way. Ear plugs are actually highly recommended if you are going to be near this thing when it is on. I have not used the cigarette lighter power option, only the standard power cord. The air pressure gauge is not very accurate, you will need to check with a separate gauge. The connector itself is fine, never had any problems with it not engaging or coming off while the unit was on. It does indeed get the job done, but it doesn't give off a high quality impression in any way.I struggled with whether to give this a 2 star rating or a 3 star rating (I would probably give it 2 1/2 stars if that was an option). I amended my review to give it 3 starts since it does work in terms of getting air into the tires, but the downsides are how long it takes and the very loud and annoying noise it makes while doing so.I just don't know how this unit would compare to other models of similar design and cost.

I used this product to fill a lawn tractor tire. It took quite a while to fill the tire, but it did eventually complete that job. Four days later I tried to use it on a car tire that was low. The unit would not work at all. Apparently the fuse is blown. If so, I don't know what kind of fuse I need to replace it. I guess I'll take it to an auto parts store and see if they can determine what kind of fuse to buy. No instructions or manual came with the unit. If you want to spend $40 for a one time use, then this is the product for you.UPDATE: I contacted the manufacturer to report the unit failure. They immediately offered to send me a new one. Was told there is a two-year warranty. I would give their customer service 5 stars.

Update Mar 15/2016 - Still giving 1 star for product, but 5 stars for customer service. I was contacted the day after my review and was told to pick a new air compressor (any model, not just the one I ordered) and the would send it out - no charge for the compressor and no charge for shipping.

I bought this January 2015 and used it 6 or 7 times in 2015.

The last time I used it (October 2015), it was to pump up a couple low tires on my vehicle. It overheated on the first tire, but after 30 minutes it was ready to go again. It overheated on the second tire, but by the that time the tire had reached pressure it needed to be. I pulled it today to pump up a couple bike tires, but it still doesn't work.

Very unimpressed with this pump. I recommend looking at a pump made by another manufacturer than Kensun.

Shortly after receiving the Kensun YS-205 air compressor, my husband and I needed to use it to fill a tire on a dolly and a wheelbarrow. When we plugged it in and turned it on, nothing happened. We thought maybe it was the power outlet so we tried a different outlet...still nothing happened when we turned it on. After questioning the electricity in our house, we tried using the plug provided for the car. The YS-205 worked when plugged into the car, but we could tell it wasn't working well. It was taking much too long to fill a small tire. Two other points - I thought it was interesting that we received an email from the seller about the product checking on our satisfaction with the product and to contact customer service with any issues. It was almost as if they knew the product was defective. Second point, their customer service was good. They refunded me right away and did not ask us to mail back the air compressor. It went in the trash. I wouldn't recommend purchasing this product. I was surprised and disappointed after reading so many positive reviews about the product.UPDATE: 1/7/16 I received exemplary customer service from Kensun. Joe, a department manager made it a point to connect with me regarding the faulty product. He tried to connect with me via phone and also via email. Here's what he had to say:I am terribly sorry that you had trouble with our product. Please accept our sincerest apologies. We consider product reviews as opportunities to improve our product and service. I would like to help you resolve the issue you are facing. I have taken the liberty in sending you something without confirming it with you first, (I did try and call a few times) I hope you don't mind. I have sent an upgraded model. Obviously this is completely free of charge. I have included a special adaptor which will allow you to plug it in from a home outlet too. I would also like to touch upon a small point mentioned in your review. You mentioned you received an email from us asking about your satisfaction, and you understood from that, it's almost as if we knew it was defective. I would like to point out, every customer receives that email no matter what they order from us. We try to go the extra mile for our customers and usually it is appreciated. I hope that clears it up. We at Kensun stay with our customers and want them to be happy with us and the products.The customer service received from Kensun is exemplary. Joe went the extra mile to ensure I was happy. Very few companies do this, usually it's the consumers fault or problem. Anyway, I while I haven't tried the new compressor yet, I'm sure if I have any trouble with it, Kensun will make it right!

Does the job.Small, short end of cord with nozzle head.

The compressor works fine but the pressure gauge doesn't work at all. Not worth sending back

I only have one problem with this product it is slow and for best results run you car engine and you will pump much faster

Bought this to replace a Kia pump that you have to screw on rather than just clamping on. It worked, and would do for an emergency, but the gauge goes in 50 psi increments that are less than 1/4 inch apart so forget trying to pump your car tires to an accurate pressure. I should have ignored the 'Car and Driver' name and paid attention to the psi rating.Used it once and tossed it in the trash.

Pretty slow to inflate but it works

The gauge is inaccurate but it pumps well.

OK.... first use was fine (VERY noisy, but fine). I spent approximately 4 minutes inflating two bike tires... great. Now on to test #2, inflating a child's swimming pool... NOT fine. After 15 minutes of use (and barely any sign that there was air in the pool), the compressor shut off and now it will not start again. I removed the fuse and visited two hardware stores, only to find they do not stock that size. Next stop will be Home Depot, but that will have to wait until tomorrow. I just e-mailed Kensun for information, because I still don't know if I simply blew the glass fuse OR blew out the entire motor. Updates to follow.UPDATE: 9/7/16: Received 2 e-mails and a phone call from Kensun offering a free replacement to a better model air compressor. As this is similar to the messages others on here have received, I pondered it for a while, but opted to just return the unit instead. I don't want to go through the hassle of shipping back and forth.

I noticed today, when looking for something to replace this item with, that it's now dramatically reduced from the price I paid. I'm not surprised; it was a total waste of money. I bought it to add air to my tires at home when the TPM warnings light up. A few psi will do it so I mistakenly thought, based in part on previous reviews, that this machine would do the job. The first time I used it, it did; sort of. It smoked like crazy, but it pumped air. I had an e-mail conversation with the manufacturer and they suggested it could be dust burning off on first use - hmm?? I kept it and used it for the second time today. Part-way through the job of topping up the tires to satisfy the TP monitor, it started smoking then shut down completely. Left it sit to cool off but it's dead.Addendum, 24 hours later: The Kensun customer relations folks are certainly on the ball. I've received an e-mail and a voice message offering me a different (more expensive??) model at no cost. Often, how a company responds to complaints can offset a poor experience. I'm impressed by their efforts and have added an extra star to the rating in recognition. DS

When my cheap, plastic Campbell Hausfeld unit from Walmart died, I thought it was time to get a better piece of equipment and selected this after looking at reviews. The unit works, but it is both louder and slower than what I had before. I had hoped for much more. The unit does not have automatic shutoff. The range on the pressure gauge is too high (up to 260 psi). This makes it very hard to see the difference between 25 and 30 psi. If the gauge only went to 100 psi, it would be much easier to read ... especially considering that the indicator needle vibrates over about a 10 psi range (which the gauge on my old cheap compressor did not do). I believe that these are made in China, and when I first opened the box there was a very strong solvent smell. The company has been sending me emails that say if there is any problem, they want to make it right. I appreciate their effort. My unit works, it's just not that good for what it costs.

Very disappointed. Purchased it to keep car tires properly inflated; for a car tire, this is NOT the best choice. First problem, the inflation rate is far too slow for any automotive tire. At first I thought the unit was not working; it made such a loud rattling noise while running and the featured psi gauge wasn't rising. Eventually I concluded it simply took a very long while to increase tire pressure, far longer than what I was accustomed to using other units. After increasing pressure by 5psi in all four car tires, I could see slight smoke coming from the unit. Second problem, the featured pressure gauge is not scaled well to read pressure from 0-40psi; the markings are too close together. Beyond 40psi, the scale is enlarged for better viewing making this gauge useful for reading higher psi, such as for a bicycle tire, but not for reading the psi range of a car tire. In summary, consider this unit if you only need to inflate bicycle tires or perhaps other small items. The fact that it plugs into household current is nice and I like the way it clips to the valve stem on the tire. But purchase something else to inflate car tires.

These people stand behind their product. Well made durable compressor. Not super fast but can inflate large tires if you have the patience. 12v or 110v is a very nice option. No auto stop. But, I had a hose come off. Instead of asking me to send it in or try to fix it, they just sent me a new one free, no postage, no questions asked!!!!Now, I have to revise my rating. The same thing happened with the replacement compressor as with the first one. The inflator hose came off in side the unit. I tried taking it apart to fix it but not made to be repaired. Also it overheated and stopped working more and more often. But without the inflation hose, it's useless.Good design..poor quality

Bought this to keep it in the trunk for emergencies and because most gas stations are a pain to actually use their air pumps, that is if they're actually working.Docked a star because yes, it is loud. I read some guy said its not. Maybe he's hard of hearing. Do not use this at night or in enclosed spaces.Also its slow using DC power. They recommend having the car running but even then its pretty damn slow. I'd say its about 1-2PSI per minute. It took me about 5 minutes to get from 20-25psi on a Corolla with OEM tires.But, having the convenience of not having to deal with gas stations earns 4 stars from me.*EDIT*After a few months of living with this, I cant recommend this product anymore. The fill-up times are absurdly slow, I had a nearly flat tire and had to pump at it for 30 minutes to even get it near drivable conditions. I left it at 2-stars because if you were completely lost in the middle of nowhere, sure you could probably get your tire filled up eventually but it'll take so long you could've probably walked over to the nearest town and back.

Pressure gauge is not accurate, but it does pump air

Broke on the second try. I bought it for pumping up a team's ball, but it lasted for one use (I shut it off between pumping up balls, too).

It's okay, not great, and kind of big, but it beats a flat tire

Work 1 day

Aside from fast shipping, this product was a major disappointment. The gauge is very inaccurate, the pump is slower than advertised, and the power toggle broke upon first use.

The gauge goes to high, so when trying to fill my tire to 34 psi I could not see exactly where to stop. It did put air in the tire but there are better options out there.

I purchased one of these in June 2015, and have had two problems with the compressor.1) Upon first receiving the unit I found the cord for wall plug-in would not stay securely attached to the compressor when in use. It was simply too loose, and would shake out when the compressor was turned on. I called customer service who sent me another cord, same problem. I thought it too much trouble to send the compressor back (yes, I'm sure I could have, and maybe another unit would have been better), and have been working around this issue by laying the compressor on its side whenever I use it.2) Second issue, and a lot more problematic, is that after 1.5 years of use the air hose has sprung a leak where it connects with the valve clamp. So, it is essentially now useless. Good thing I discovered this at home, rather than on the road somewhere under less ideal conditions, which was the primary reason for buying this compressor.Net net, have experienced poor quality with the unit I received and I'd be reluctant to have one of these in my trunk and trust it to work when you need it to.

PROS:1. 110v & 12v plugs2. Nylon Storage bag.CONS:1. LOUD!2. Could not get past 30PSI.3. Smells like it was transported in the tank of a gasoline truck.I plugged the unit into my garage 110v outlet, then I clamped the end onto my car tire valve stem and powered the unit on using the side mounted 110v switch. The gauge read 30psi, which matched my cars monitoring sensor, so I though there might be some hope for this thing. After 2 minutes, the gauge dropped to 25psi. I turned the unit off but could not hear or feel any leaks as i ran my hand along the hose and connector. I turned it back on and left it running for 5 minutes, but there was no change.I'm not sure if I want to keep it around for bicycles & balloons or throw it away.

Kensun YS-205 pump review: If I could give this 1/2 or no stars, I would. Do NOT make the same mistake I did. After years of topping off my car tires with a bicycle pump, I decided my back and my time both needed saving. I was excited to find this pump on Amazon: sounded great, overall seemingly good scores -- and I was thrilled when it arrived quickly via Prime. That's where it ended.Excitedly, I went out to inflate my car tires in both cars. I thought something was just WRONG with it. I even pored over the instructions, etc. to make sure I didn't have to unlock something, or hit a different button, remove an air covering or something. But after going back now and digging through other reviews on this product specifically, I sadly realize that this is just the pump.1. WORST & FIRST, this hardly fills air, or fills so slowly that it will not save any time. I couldn't believe how long it took for the pressure gauge to climb just a few PSI. And I was using the regular wall outlet in my garage (tried another one too, just to troubleshoot).2. Potentially even worse (but I'm not going to wait around to witness this happen) the motor just can't handle the work, and I see a very short future. After running for 5 or 10 minutes on my first tire -- and it still not moving much toward my goal of 40 PSI -- it began really smelling and getting hot. After a little more usage on the second tire (see point 4), I actually saw smoke starting to come out. SMOKE!3. Additionally, for all the "not working," this pump is incredibly LOUD (which I suppose I could live with if it actually worked).4. After laboriously getting one tire almost satisfactory enough, I moved to a second tire. After 10-15 mins of running on that second tire (turning it off a couple of times to read the exact PSI, and to give "the little engine that couldn't" a small rest)... I got out my bicycle pump and topped off the other two tires by hand in just a few minutes. Then I unplugged the Kensun from this second tire and finished it by hand in a jiffy.5. Oh yeah, and you can hardly read the PSI gauge while it's running because the pump vibrates SO much, so you have to keep stopping it when you want to read where your at in PSI.... which unfortunately is usually the same place you were before! :(I am SO disappointed in this pump, and in this experience. I'm returning it today, immediately. Do not make the same mistake I did.Meanwhile, looking back at the Amazon page for this pump, it is ridiculous that is says this pump is reduced from $299.99 to just $39.99 (an 87% savings!!). Seriously?? It is not worth $9.99.

The issue with this product is quality. My first unit I received was DOA because it would not work from the car power source at all. I replaced the unit and used it several times to fill my car tires and bike tires. When working properly the unit is great. I liked the functionality of being able to use multiple power sources so I could keep it in my vehicle. It is not very loud and can inflate a car tire in a decent amount of time for a small unit. I was disappointed that within six weeks and only three or four uses the unit completely stopped working from the wall power source. This was after a frustrating time filling when it would short in and out. I was also disappointed to find that Kensun is selling this product for $5 more on Amazon than on their own site. Though I would gladly purchase through Amazon since they have excellent service and support.

I used this pump to inflate seven bicycle tires and two car tires. It was smoking. I gave it several minutes to cool down in between tires and then it smoked some more and then stopped working completely

I am shocked by the reviews on this product. If we had only ordered 1 unit, I wouldn't leave such a negative review. However, we've ordered it twice thinking that we just got a bad one the first time. It takes FOREVER to fill up anything. My daughter got a Wubble Bubble and it would take 1-2 HOURS to fill it up. We usually fill it up for her half way. To fill up a tire from 29 to 34, it takes 30 minutes. Additionally, it is working so hard to emit such a small amount of air that it moves all over the place. We have to hold it while attempting to use it.Update: Kensun contacted me when they saw my review and sent me a replacement (A1001) as well as the 12V to 110V adapter. It could, again, barely blow up a small child's ball from the car. As for the adapter to use it in the house, that was a complete joke. It gave the compressor just enough power to turn the light on. The air didn't work at all. Also, be aware that you're reading reviews for a variety of Kensun products. I still don't know how they have a 4.5 star average based on the multiple products we've tried, but the rating is very inaccurate. The products should all be listed separately so that the ratings are fair.Update 10/18/15: The company continues to contact me to offer free equipment to change my review or remove it. While I appreciate the effort to make us happy with our purchase, I don't appreciate them asking me to delete or change my review. Here are comments in the last 2 e-mails I received from them: "If we have met your needs and our offer resolves the issues with your purchase, we would be ever so appreciative if you would consider removing your review, as I wrote earlier, your ratings are important for us to continue to provide our customers with our services and products, and we do follow and try to resolve any issues our customers may have! " And another from this past week: "How are you ? I understand that you did not like your replacement air compressor but you can choose another model all is this is free all I ask if when you receive it and you are happy then if you could adjust your review ."Kensun: We have gave your product a fair try. The equipment is junk. Our review is just as important as the others. I am not removing or changing my review.Update 11/18/15: Kensun continues to harass us. They sent us another machine and we can't even get the hose to hook up properly to the equipment. When the manager called me, he said "sometimes customers get 2, 3, 4, or even 5 bad machines, but I assure you our equipment is good". Um, ok.KENSUN - I WILL NOT REMOVE MY REVIEW. PLEASE DO NOT CONTACT ME AGAIN. You most recently called me 3 times in one day. I am also letting Amazon know about the continued contact. It's gone way overboard.

Gave as a gift and did not work out of box. Hoping I can still return.

Looking for a compact, inexpensive emergency tire pump, and this seemed to fill that bill. Original order of the item arrived with broken plastic case, caused by one of the two internal rubber vibration isolator mounts MISSING, allowing pump assembly to bang around inside during shipment. Hoped that a second time would be the charm, but replacement unit arrived with BOTH isolator mounts missing, and more broken plastic screw towers than before. None of the missing mounts were found in the case or package.I hadn't heard there was a rubber shortage in China, but until the reason for the manufacturer's inability to install them as required by the design is fully known, assume your order might be similarly afflicted. GENTLY shake the package upon arrival. If it rattles, expect the worst, even though the inner and outer box may have no sign of damage / impact.

Did not use it immediately, had it for a few months when I had a need to inflate a very low tire before I could drive anywhere, 5 minutes later and I am still waiting for it to get the tire inflated... Total piece of junk... Put it in the land fill...

Horrible pump. The worst thing is that the built in pressure gauge does not work all the time. Sometimes it works and others it just sits at 0 Psi.

nice looking, but became inoperable one minute into use.

I purchased this item and the tire pressure gauge did not work right out of the box so I requested a replacement. The replacement worked for a month and a week and this is with just inflating (4) bike tires once every weekend so it was long enough not to be eligible for replacement. In my opinion it is poorly manufactured.