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Customer reviews for STANLEY FATMAX 1200 Amp Jump Starter + 120 PSI Air Compressor & USB Power for
STANLEY FATMAX 1200 Amp Jump Starter + 120 PSI Air Compressor & USB Power
4.3 out of 5 stars
stars
321 ratings212 reviews
  1. 5 stars71% (228)
  2. 4 stars12% (38)
  3. 3 stars3% (11)
  4. 2 stars4% (12)
  5. 1 star10% (32)

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Showing 171-180 of 212 reviews
May 30, 2025
Reviewer name: nathand12_1773
5 out of 5 stars
5 out of 5 stars review

One of the best compact battery jumper and compres

[This review was collected as part of a promotion.] This unit is really great and so easy to use I definitely do appreciate that you can put what psi you need for your vehicle and turn it on and it will shut off when it is finished automatically and I do like the compact design and the battery jumper is very helpful in time of need.

Review from Stanley12volt.com
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May 1, 2025
Reviewer name: vincea21_4256
5 out of 5 stars
5 out of 5 stars review

Must have!

[This review was collected as part of a promotion.] Amazing! Literally the best jump pack I ever owned! This is an all in one set up! Perfect for any car/truck/atv/bike anything! Love that it comes with a strong air compressor, and bright flash light pefect for using during the day or at night! Also love that charges super fast and last along time! Highly recommend

Review from Stanley12volt.com
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May 18, 2025
Reviewer name: joseg10_8601
1 out of 5 stars
1 out of 5 stars review

Broken after the first use

[This review was collected as part of a promotion.] I got this thinking that it would be great thing to have in car in case of emergency. After charging it all the way up and the first time I used it. The air pump wouldn't turn off and I had to wait until the battery died for it a couple of hours later. I trying charging it again and the air pump is still on or I can't use it . I would stay away from this

Review from Stanley12volt.com
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Apr 17, 2025
Reviewer name: jacobd1016_1737
5 out of 5 stars
5 out of 5 stars review

Reliable and durable jump pack with extras

[This review was collected as part of a promotion.] This is a very durable and versatile jump pack. Easy to use as a jump pack and to fill tires with air. The added light adds a nice bonus for using in the evening time. The outlets and ports are a nice touch for traveling with multiple devices. Easy to charge in home and store for anytime use.

Review from Stanley12volt.com
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Apr 29, 2025
Reviewer name: karls18_851
5 out of 5 stars
5 out of 5 stars review

A dependable all-in-one roadside tool that deliver

[This review was collected as part of a promotion.] This Stanley jump starter has been a reliable tool to keep in my vehicle. The 1200 peak amps provide plenty of power to jump a dead battery, even on larger trucks, and the built-in 120 PSI compressor is super handy for topping off tires. I’ve used it multiple times and it’s never let me down. It holds a charge well and is easy to recharge. The unit is durable, relatively compact for its capabilities, and simple to operate even for someone without much experience. It’s loud when the compressor runs, but it gets the job done quickly. Overall, a solid and versatile tool.

Review from Stanley12volt.com
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May 18, 2025
Reviewer name: agooch33_2364
5 out of 5 stars
5 out of 5 stars review

Stanley FatMax 1200 Amp Jumper/Compressor: Powerfu

[This review was collected as part of a promotion.] After owning a previous model of the Stanley FatMax 1200 Amp Jumper/Compressor, and being pretty darn happy with it, I was excited to give the newer model a try. Honestly, it was worth every penny I spent on it the first time, but I was curious to see if they had addressed any of the “shortcomings” I noticed from the older version. Here's the rundown from my experience with both the new and older models: What I like (Pros): - Battery Life is Solid: Both models hold a charge like nobody's business. I've left the original sitting in my trunk for months, and when I picked it up again, it was still showing a full charge! I haven't owned the new one long enough to determine if that's still the case, but I imagine it is. - The Air Compressor is Actually Useful: I really like that you can set the exact PSI you need, and it just stops when it gets there. No more guessing! It's been great for topping off the tires on my vehicles and for my family's bike tires. Both models are a little loud when using the compressor, but they work superbly well. - Plenty of Power: This thing has some serious juice. I've used my original to jump-start my brother's V8 truck, the wife's van, and my car. It hasn't let me down once. I've only used the new version one time for this purpose and it worked perfectly. - USB Ports: One of my gripes with the first model was the fact that it had four USB-A ports. With the world moving to USB-C, I found myself wishing it included some of those as well. Alas, this new model swapped two of the ports for USB-C! This is super handy for charging phones and other gadgets when you're on the go. And I can confirm that the USB-C ports allowed for quick charging on my Google Pixel 8 Pro. - Adjustable LED Light: if you've ever had to pop the hood of your vehicle in the dark, you know how difficult it can be to navigate that space when you don't have sufficient lighting. This jumper includes a built-in LED light that you can angle to meet your needs. It is extremely bright and gives you all the light you will need. What could be better (Cons): - Those Jumper Cables are Short: My biggest gripe on both units is definitely the length of the booster cables. They're only about two feet long, and sometimes it's a real pain trying to maneuver the unit to get a good connection on the battery. This is done to keep the unit compact, but I really wish they were a foot or two longer. - The Air Hose Could Use Some Extra Length Too: Similar to the jumper cables, the air hose for the compressor feels a little short at times. While, this is not as cumbersome as working with the jumper cables, a bit more length would make things a lot easier. - The Alternator Check is Finicky: I've tried using the alternator check a few times on the older model, and it seems pretty sensitive. You have to have a perfect connection, especially on the negative side, or it just won't work right. I have only tested the new model for this use case once and it seemed to work fine. I'll have to do some more testing to determine if this was addressed in the new model. What I've Used It For: - Jumping starting vehicles – it's a lifesaver! - Adding air to tires – works like a dream. - Trying to check my alternator (when I can get it to work!). - Charging my phone and other USB devices. - Extra lighting while working under the hood of my car or in my garage Overall, I'm really impressed with this Stanley FatMax Jumper/compressor unit. The long battery life and the air compressor with the auto-stop feature are fantastic. The only real downsides for me are those short cables and the finicky alternator check. But honestly, for the power it packs and the convenience, portability, and peace of mind it offers, I'd definitely recommend it as a must-have in any vehicle. You never know when you might need it.

Review from Stanley12volt.com
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Apr 19, 2025
Reviewer name: jordanp141_2783
4 out of 5 stars
4 out of 5 stars review

Handy to have

[This review was collected as part of a promotion.] I received this product complementary for my honest review. The jumpers seem to work well and the compressor worked really well to air up my stroller tires. It is pretty loud and the battery life could be better but overall a good product

Review from Stanley12volt.com
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May 4, 2025
Reviewer name: uskerthegrouch_1779
5 out of 5 stars
5 out of 5 stars review

Solid and multifunctional

[This review was collected as part of a promotion.] Solid machine that does all the jobs. Very versatile! The air compressor is fast and powerful, and the chuck is easy to attach. It even comes with a needle attachment for inflatables. The jump start clamps feel sturdy but have a short length. The unit is pretty easy to operate but comes with clear and concise directions. There is also an area light and USB charging capabilities. You can even use it to check your alternator. You charge the unit using the included DC charger, but it can be used unplugged, which makes it convenient in emergencies. The biggest con is that it's a little heavy. I would recommend this to others and buy it again.

Review from Stanley12volt.com
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May 4, 2025
Reviewer name: tommylee83_6733
5 out of 5 stars
5 out of 5 stars review

Amazing tool that everyone should have!

[This review was collected as part of a promotion.] This thing is awesome. If your car is dead you can just hook it up to the battery and it will have you going in no time. Not only does it boost your car off but you can also read the voltage and check that your alternator is working. Also if it is dark outside it has led lights on it that are pretty bright. Also has USB charging and USB c charging for your phone or other devices. You can air up your tires as well and you can set the psi to where you want it at and it will automatically kick off when it is done. I think everyone should have one in their vehicle because you never know when it will come in handy.

Review from Stanley12volt.com
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May 30, 2025
Reviewer name: supreem_3720
4 out of 5 stars
4 out of 5 stars review

Great product for the price

[This review was collected as part of a promotion.] This is a well built device with portability, ease of use, and design in mind. It is easy enough to care with one hand and has everything you need. I didn’t even realize it had a air compressor attached until I took it out of the box. The jumper cables are conveniently on the sides and the air compressor is tucked under the LED light. This light can def come in handy late at night. I do not believe the device is any louder than any other air compressor and for the size it does inflate fairly quick. I was able to use it on my rear tires. I think for the price that it is valued at. It is def worth keeping one in your car in case of emergency.

Review from Stanley12volt.com
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