Customer Reviews for Milwaukee M12 12-Volt Lithium-Ion Cordless Electric Portable Inflator Kit with 4.0 Ah Battery and Charger

This Inflator is the best! This little cordless inflator is one of the handiest tools Milwaukee has come out with! Super small and light, it quickly inflates tires on bikes, cars and yard equipment. This tool inflated the tires on my lawn tractor quickly, taking only 10 or 15 seconds each. It's super convenient as it automatically shuts off at awhatever preset pressure you choose. Just screw the hose on to the Schrader valve, set your target pressure and hit the Start button. Then you can walk away and do something else. Duty cycle is 50% with a maximum on time of 10 minutes before you need to let it cool. It pumped up my bike tires to 100 PSI with no problem. Super handy!

It’s hard to find a good pump, so when I saw this one I just had to try it. This is exactly what I’ve been looking for after our last pump broke and was discontinued by the manufacturer. This is a great replacement. PROS *Easy to use *Heavy duty and very well made *No pumping required *Compatible with all M12 batteries *Nice long air hose *Easy to read screen *Nice large buttons *Very fast air flow *Fairly priced especially if you buy the bare tool and use batteries from tools you already own CONS *I wish the small batteries had the built-in battery level reader, but definitely not a game changer in any way *It is a little loud, but not too bad though 5 out of 5 stars I highly recommend this product!

I called Neal the Milwaukee Rep for the Glendora Home Depot, and told him this by far is one of the best tools Milwaukee has come up with. I got 3 and will be ordering more when he gets them in on the 8th of May. I ask him for 4 more, the main reason I don't go online to buy these and other Milwaukee tools is because of Neal from TTI. Neal does such an outstanding job with the customer not just his line of tools, but Dewalt and anything in the store. We are a managed account, Neal goes out of his way to help any customer. He is the reason we buy all of our tools from him and Glendora Home Depot. If he moves, we move. Thanks, Jim account manager...

I would recommend this tool if your family needed a light duty tool for inflating a soccer ball, a small tire, or maybe a small raft! With an M12 battery it works fine for topping up the pressure in a tire, the digital display is accurate when compared with a PSI tire gauge, unlike some other pumps we have tried...It would do well as a portable inflator, but you would need to use higher voltage or extended life M12 batteries if you had a lot of inflating to do! The main thing about this tool is its portability - that can make it very valuable...after getting the battery to go with it!

$79 with a battery great deal this little thing is awesome. Remember this isn’t a big compressor so don’t expect to air up in secs. Love this tool

Quick Review: Great product, portable, lightweight, the gold tip on the cord screws on for a secure connection. Easy to use, you can set the desired psi level fairly quickly. More In depth Review: I used this to inflate 2 tires. One was just about empty, the other one was a little lower than where it should have been( I wanted to increase the level from 26 to 32psi.) To fill up the tire ,that was just about empty, to 30psi took about 5minutes. I used the 4AH battery and this took up half of the juice in the battery. This is a great product, lightweight, portable, gets the job done. My only recommendation if their is an upgrade , would be to have a lid for the on board storage so none of the accessories fall out. They all fit in their respected spots, but I am weary that it may fall out. Value is high especially since their are a lot of useful products on the M12 platform. Besides that this a great standalone product that is extremely useful, I would not use it a night unless you really to due to the noise. During the daytime, it would not be an issue. Charge time out of the box(1/2 full) was about an hour Observations: Regardless of the size this is an inflator so it is noisy, about 78db according to my sound meter. -If you hold the + sign to increase the desired psi, it will increase by 5 psi for each second that you hold it, great way to set the desired level quickly. Otherwise, each time you press the + sign it will increase by 1 - I am glad I used the 4ah battery in this instead of the smaller ones, the added length provided an extra grip to remove the battery. Removing it fairly difficult, you have to really yank it out .

This little M12 Inflator is great for most of my purposes. The Specs say the digital gauge of this Inflator is accurate to within +/- 3%. I’ve always trusted good dial gauges for tires, and I’ve seen mostly bad reports about the accuracy of digital gauges, so I wanted to compare the digital gauge on this Inflator with my trusted dial gauge. I tried it first on a couple of LT245 75R16 tires on my old truck, which has been parked for quite a while. First, I checked each tire with a dial type gauge which has always proven to be very accurate. Starting pressure of first tire read about 31.5 PSI with the dial gauge. Inflator read about 2 PSI lower at 29.5 PSI. Inflator shut off at target setting of 40 PSI. Dial gauge read about 41.5 PSI. Starting pressure of second tire with dial gauge read 31.5 PSI. Inflator read 29 PSI. Inflator shut off at target setting of 40 PSI. Dial gauge read 41.5 PSI. Each tire took about 0:2:45 to increase pressure roughly 11 PSI. Not bad for such a small machine on these higher volume tires! However, I noticed that, after inflating each tire, the battery indicator showed that it had used about 75% of the 1AH M12 battery charge. Since I started with a freshly charged battery, this was a bit disconcerting. However, I also noticed that between tires the battery indicator showed that power had increased back up to 75% charge. So, it could be that the battery indicator shows a bit less immediately after use and regains a bit after not running for a moment or so. After fully recharging the battery and waiting a day, I checked the car tires. As with the truck tires the dial gauge read about 1.5 PSI higher than the Inflator gauge @ 33.5 vs. 32 PSI. The difference was the same on all 4 tires. I then went to the wheelbarrow tires. All 3 were completely flat and it took about 15 seconds each to go to 35 PSI. I decided to see how this inflator does on a completely flat, fairly high volume (31 x 10.50 – 15) vehicle tire. At about 6 minutes, when the battery died, it had reached 18PSI. The total time on this battery, with everything done on this charge, was less than 8 minutes. The manual for this Inflator says to NOT run it for more than 10 minutes, and then to let it rest and cool for 10 minutes. The Inflator is rated at 0.63 CFM @ 35PSI. We don’t have any bicycles, balls, or toys to use this on, but I suspect it would be great for those. Given the low volume and 10 minute run time, it is not going to be great for airing up a large or very low tire. Since we don’t have an air mattress or inflatable boat, I couldn’t test that aspect either, but I suspect that the high volume (but low pressure) they require might be a bit much. I’m a picky old guy, and I hate buying tires because of uneven tread wear, so correct tire inflation is important to me. Since this inflator appears to consistently be off by 1.5-2 PSI, I’ll just set the target inflation on the Inflator at 1 PSI lower than needed and then use the pressure relief on the dial gauge for final adjustment. Conclusion: For anything more than a quick addition of a few pounds or other small inflation jobs, it would probably be good to have a larger (2AH or more) battery. For most of my purposes, this M12 Inflator will prove to be pretty handy. Sure beats dragging out the compressor and stretching out 25 ft. or so of hose for those small, quick inflation needs.

I recently picked up a Milwaukee Cordless Compact Inflator Kit W/ 4.0Ah battery & charger. Milwaukee claims it is the “fastest cordless tire inflator” and may well be. However, on my test topping off a trailer spare tire (235/16 size) from 55 psig to 80 psig it took 16 minutes. The battery had a full charge (4 bars shown on the inflator) when I started filling the tire and 2 bars when filling was complete (4Ah battery). The test I describe above is pretty tough. I also topped off my ATV tires from ~5 psig to 7 psig and that took about 30 seconds per tire. The unit spec’s state that a car tire can be topped off in under 1 minutes 28-35 PSI and a LT truck tire in under 4 minutes 30-45 PSI. The unit is rated to deliver over 120 PSI. I like the unit and the display. When you connect the air hose to the tire you immediately see the existing pressure in the tire. Use is easy, if your tire is low, just connect the air hose, hit the plus button until the desired pressure is shown and start the inflator. The little inflator will run until set point. If the the tire is over inflated at the the start the hitting the minus "will not" deflate the tire. The unit comes with a Schrader connection on the hose. On the back of the inflator there are adaptors to inflate an air mattress, soccer ball or presto chuck. The adaptors are secure in their storage locations. This little unit won’t replace your shop compressor but will be great for topping off a car, ATV or trailer tire and/or in an emergency which is it’s intend use.

Great portable cordless inflator! Quickly inflates tires. Compact at approximately 6” X 6” X 8” and weighs approximately 3 lbs. without a battery. The display is well lit allowing you to easily see tire pressure and set pressure even in low light environments. The hose and assorted valves and adaptors are conveniently stored on the back of the inflator. Two things that most impressed me were: How stable the inflator was while running. It didn’t dance all over the ground while running. See video. Also how many times I could inflate a truck tire even using the smaller M12 2.0 battery. During my evaluation I repeatedly (at least 5 times) inflated my tire by 10 to 15 lbs. without running the battery to empty I only wish Milwaukee had included a cigarette adapter and cord so in an emergency I could run this off my truck battery.

This is my first inflator, i did not think they worked but it worked with my M12 system, so i got it. This has more features then i expected. LCD readout with actual pressure, target pressure, unit temperature, hose and adapter storage, vibration dampening feet and solid as a rock. Everything i expect from Milwaukee. worked perfectly and the pressure was accurate. one thing, it lists adapters for inflating different items but no tire adapter. that is because the hose filling is for tires no adapter needed. i love it.

This is a great battery powered inflator. I manage a commercial tire store and I was very impressed with it. We tested this unit on a small tractor tire and a 20" tire on a Ford Explorer. It inflated both with no problems and it still had more than 50% of the battery life left. It comes with a few accessories that are stored on the rear of the unit for inflating sports balls and air mattresses etc.. It took about 5 minutes to inflate the car tire which I thought was quick for such a small machine. To use it all you need to do is hit the power button, set the pressure and press the inflate button.

Awesome little inflator!!! This machine looks small but it is a power house. I got a nail in my rear tire and it went all the way flat. So I drove my wife’s truck to Home Depot and picked this up and it’s impressed me. It filled my tire that was completely flat in six minutes and it stayed cool, it didn’t bog down or show any signs of weakness. It was awesome

I've owned this unit a little more than a year. Used it primarily to inflate tires while out on the job. Went to use it today and it just isn't inflating anything. Its got a high output 5ah battery in it. It overheated and a little smoke rolled out of it and now it just doesn't inflate at all. Guess I'll get the m18 next time..

Better than expected. Definitely recommend the tool

Fabulous! Quick, effortless …..

Milwaukee tools are the best tools to own and this inflator is great. We are a 3 car family and each car has their own inflator and battery. It works great!

Received a broken unit. Makes a crazy rattling sound and does not build or fill any pressure at any limit set.

Nothing but quality, as expected from Milwaukee. Worth every dollar. Best portable tire inflator on the market. Tough plastic casing & sturdy braided cord. Accurate digital readings, fast inflation, stopping at desired psi. Rubber flexible feet that absorb vibration is really useful. What doesn’t Milwaukee think of? The Apple Inc of the hardware industry in my opinion. Great addition to my M12 portable tool collection!

Love it. I just wished if it would take m18 battery instead of m12. I know there is m18 tire pump but it's way to big and it takes lot's of space in the vehicle so the m12 inflator is the perfect size with the wrong type of battery. Overall im very happy with it as is

Product functioned as it was supposed to.

Really fast for its size & super easy to use

it works great for what i use it for i am very happy with it and performs great