KeenPower Tire Inflator Portable Air Compressor – Super Fast – 21V Rechargeable Battery Powered Handheld 160PSI Tire Inflator, Dual Power Supply Modes, Portable Air Pump for Car Motorcycle E-Bike

KeenPower Tire Inflator Air Compressor
This is truly a uniquely designed product. The digital display allows a preset selection for cars, motorcycles and inflatable sport devices with a pictorial selection for each that distributes the right amount of air and then shuts off. Also, the air pressure can be adjusted in 1/2 psi increments either up or down to your desired need. The rechargeable battery pack really makes this device portable. The design of it stands upright without tipping over when placed on the ground. The built in LED light is a nice added feature. The unit can be recharged from a vehicle or electrical house pug. Also, the zippered nylon retaining bag is very nice.

I’m happy with it so far.
It came with a charged battery so I took it right out and added about 14 pounds to each front tire of my car. It’s easy to use and the built in gage is accurate. It only took a couple of minutes to top off each tire.

Great accurate portable pump
I have owned a few portable air pumps and so far this is the only one that has an accurate gauge. Most of the other units that I have had or as far as 3 to 4 pounds of pressure low so it inflating my car tires to 36 pounds my cars computer shows they are 40 to 42 psi. The auto shut off feature is very nice to ensure that the tire is not overinflated and the portability of this unit is great and allows me to bring the compressor to the car and not having to use my large compressor just to fill a car tire or bicycle. The build quality looks to be durable and very compatible too the brand name portable air pump. The other area that I was pretty impressed with was the fill rate this unit seems to air my tire up any much faster rate than any of the other ones that I have had and the battery so far has been quite impressive at how long it does last much longer they my other portable air pump that I had would be almost completely exhausted after just going around and topping off the tires on my car. When I receive this unit, first thing I did was charge the battery to make sure that it was fully charged, which is what you should do even though it does come with a charge in it. It is always best to top it off before the first use to ensure maximum battery life. Once the unit was fully charged, I took it around to all my cars and trucks to check all the tires and the battery did not run down at the same rate as the smaller portable unit that I have. The fact that this is a dual power unit that can be powered by the battery or plugged into the lighter of your car. Makes this a great emergency tool to have with you when you’re taking road trips for me I always take a portable compressor and a portable jumpstart pack when I am traveling just in case an emergency situation comes up or if I encounter someone who is having a problem, I am prepared to help. The only thing I wish that they would do would be to include a second battery not that it needs one, but it would be nice to always have a second battery fully charged as a back up. For the price of this unit compared to the price of the brand name, but this is designed after this is definitely is one of the better buys that I have made. A lot of times they say you get what you pay for and in this case, I think you get a little more than what you pay for. As far as noise level, this unit is about typical for a small portable air compressor. It is by no means loud, but just like any other air compressor is does make some noise. There is going to be a certain level of noise associated with the air pump. If you are considering buying a portable battery powered pump in my opinion, this is one to buy. I stated earlier in the review when inflating my tires to 36 pounds and checking it against the car’s computer. The car reflected exactly the same pressure as the Gage on the pump and my Auto shut off point which was quite impressive. Hopefully this will help someone in making a decision but yes, in my opinion this is a great solution for a battery powered pump and hopefully it will have hold together well and last a while but as for now it seems to be an incredible unit. Definitely Grab one for yourself or loved ones

Good device for the job, but some of these are defective and won’t work at all when you get them
I bought one of these and used it once so far on my minivan to get the tires topped off after the cold weather dropped the pressure on them. It easily reinflated all 4 tires from around 29 PSI to about 36 PSI on a single charge (with room left to spare).I found it so easy to use, that I bought one for my daughter to keep with her in her car up at college (for emergencies). Unfortunately the 2nd one I bought was dead on arrival. The LCD display would light up showing that the battery had a full charge, but the pump would never activate. I returned it as defective and got a replacement and the replacement worked fine.So… all that is to say, it seems like a reasonable device for the job, but you might get one that is defective. Make sure you don’t buy it and leave it in a closet waiting for your first use. If you buy one, make sure you try to use it right away. Otherwise, you might find out when you really need it that it never worked at all.

Although the product is sold to the British market, it doesn’t come with a British 13 plug charger. It comes with an adapter for foreign markets. I have had to purchase a separate 13A 240v to 12v power adapter to charge the battery.