Customer reviews from Stanley12volt.com
Stanley - FATMAX Portable Car Jump Starter, 120 PSI Air Compressor, USB Power Bank, 1500-Amp Peak, LED Light
Average customer rating
4.8
(48 Reviews)
Rating breakdown 48 reviews
5 Stars
41
4 Stars
6
3 Stars
1
2 Stars
0
1 Star
0
Customer Reviews for Stanley - FATMAX Portable Car Jump Starter, 120 PSI Air Compressor, USB Power Bank, 1500-Amp Peak, LED Light
Customer Rating
5
Reliable jump starter that’s powerful, easy to use
on November 30, 2025
Posted by: diegog38_5705
[This review was collected as part of a promotion.] I’ve been using the Stanley FatMax J15CF 15 Amp Jump Starter with Air Compressor, and it has already saved me multiple times. The jump starter is strong enough to start my car quickly, even in colder weather, and the built-in air compressor is super convenient for topping off low tires without needing to find a gas station. The screen is easy to read, the clamps feel sturdy, and the whole unit is simple to operate even if you’re not very technical. It’s a little on the heavier side, but the reliability makes up for it. Overall, it’s a great emergency tool to keep in your trunk and gives real peace of mind.
Written by a customer while visiting Stanley12volt.com
Customer Rating
5
Excellent device that is easy to use!
on November 30, 2025
Posted by: brandenb3_2900
[This review was collected as part of a promotion.] One of the best accessories to have with any vehicle. Within the first week of receiving the jump starter, I used it to jump a friends car and it worked flawlessly! On a single charge I used it at least five times and could have probably used it more. When jumping a vehicle, the device makes it quite simple to know when you are hooked up correctly to the battery with an audible beep to ensure proper connection. There is also a gauge that shows the voltage on your battery which helps when trying to figure out if you have a bad battery. I have also used the inflation part of the device on a few bike tires with no problems. All in all, the device works exactly as it should, and can be used by practically anyone due to how easy it is to operate.
Written by a customer while visiting Stanley12volt.com
Customer Rating
5
Stanley is the right way to go
on November 30, 2025
Posted by: eminag2_2947
[This review was collected as part of a promotion.] My husband took this out hunting and it worked amazing! It kept his phone charged but it also was able to jump start one of their cars. It’s also lightweight but packs a punch!
Written by a customer while visiting Stanley12volt.com
Customer Rating
5
Easy to use and well built.
on November 28, 2025
Posted by: raym24_4124
[This review was collected as part of a promotion.] Easy to use and well built Jumpstart and air compressor. Also comes with handy built-in LED flashlight and USB plug in to charge devices. This is perfect to take on roadtrips or just to have in the vehicle for emergencies. Highly recommended.
Written by a customer while visiting Stanley12volt.com
Customer Rating
4
Small and heavy but easy to use
on November 28, 2025
Posted by: ashleyv363_585
[This review was collected as part of a promotion.] This jump starter/air compressor is great for what it’s intended for. It’s been able to jump our riding lawn mower and my sisters 4Runner with no problems. It charges relatively quick. It’s small so easy to store and travel with. My only complaint is that it is pretty heavy and the jumper cables on it are kind of small so when jumping a car you have to be able to set it somewhere on the car. Other than that I really like this product and would recommend it to others.
Written by a customer while visiting Stanley12volt.com
Customer Rating
5
Heavy duty portable multi purpose Jump starter and
on November 28, 2025
Posted by: madhusudant_6925
[This review was collected as part of a promotion.] It is made of durable construction and is very portable, although a little heavy, but the multi performance with up-to 120 psi of air compression, is also heavy duty which holds a reliable charge for quite some time.
Written by a customer while visiting Stanley12volt.com
Customer Rating
5
This Jump-Starter with Air Compressor works amazin
on November 28, 2025
Posted by: yens5_1406
[This review was collected as part of a promotion.] Thank you @influenster and @StanleyFatMax for the chance to have this Jump-Starter with air compressor. It worked amazingly, my husband used for his car and he said it worked wonderful and fast, just followed the instructions and it’s very easy to use and maintain. To me it’s pretty heavy though. I used it to pump my tricycle wheels and it super easy to pump. I just screw the nozzle into the wheels, pressed the button for tricycle wheels, when the desired pressure is reach, the compressor automatically stopped. I pressed the compressor power button again to turn it off. I unscrewed and removed the nozzle, waited for it cool down, then followed the instructions I recharged it before storing it away. Highly recommend for this product and Thanks again!.
Written by a customer while visiting Stanley12volt.com
Customer Rating
5
Multi use FatMax
on November 27, 2025
Posted by: missc1_4455
[This review was collected as part of a promotion.] This stanley fatmax is great it has multi uses. You can use it to put air in your tires and jump start a car. Also you can charge your phone. Its great for keeping in your car and on the go for any trips. Definitely is a life saver. Its not too heavy.
Written by a customer while visiting Stanley12volt.com