I bought this to carry in my side-by-side as a backup in case I got a flat or dead battery since it seemed to have what I needed (battery and air compressor). However, I had a dead battery in a 90 Ford Bronco, and decided to put this to the test and see how it worked. Unfortunately, this wasn't powerful enough to turn over the 5.0 V8, but a much smaller lithium jump starter I had was! I realize a smaller car or my side-by-side is a much smaller engine and this might turn them over, but I don't want to be stranded in the middle of nowhere crossing my fingers with this and I'd prefer something that can work for multiple situations. Like others have said, you'll need an extension cord to charge this. To some it's not a big deal, but it limits you to where and how you can charge it. The lithium jump pack I have, includes small charging cords with it- including 5 ft for 120v at your house, or a 4 ft 12v adapter for your car which make it a bit more versatile. To some this will be fine at home, but in your car you can only use it so many times befor the peak amps jump capability drops. Having the ability to plug into your cigarette lighter and charge it right after using it gives me that little extra sense of security. I didn't test the other features, like the air compressor, since I realized I didn't have the confidence in the battery jump capabilities. I decided to get another smaller lithium jump battery and the small Michelin compressor at my local Sam's club. if you want an all-in-one and have a smaller vehicle/engine, this will probably work, but if you're planning on keeping it in your vehicle, you'd be better off with a lithium jump battery and separate compressor that you can charge in your vehicle. They'll also take up less space than this Stanley Fatmax.

Terrible quality. I have used the jump start 2 times and it worked great, but the first time i used the air pump it worked for one tire and then broke. It doesnt pump anymore. Waste of money and time. Stay away from Stanley products. Cheap, cheap cheap

I bought my first one almost 5 year ago. It is still working great. I also bought 2 more over the last couple years - so we have 1 for each of our cars. We do not use these daily, but we also don't just leave them sit in our vehicles until they die, and then it's not there when we need it. The unit has 4 bars indicating the battery life that is left. When it gets down to 1 bar, I usually recharge them. If we are going on a longer trip, I charge it full before we go. These are very slim design, so there is NO room for them to include a charging cord, which you are not going to want to deal with when on the side of the road anyway. I've had to use mine in -25 degree below zero temps, and you want something quick and easy to use. It works great - you set it on the ground right next to your tire, connect the nozzle to your tire stem, adjust the PSI to the pressure you require for your tire, and it runs until it reaches that PSI. When not on the road, we use these to inflate bike tires, water floats, as a changer for phones, etc. I jump started my riding mower. Like I said, these are amazing units, and not just to sit in the trunk for peace of mind. Use them, recharge them, and use them again. It is always better to be familiar with something before you're in a crunch and trying to figure it out while sitting on the side of the road! There is some amount of user responsibility too people! Don't leave a bad review just because you didn't pay attention to the fact that it does not come with a charging cord.

Brought it home and started the car immediately. I appreciate the capacity and size of the built in battery. It should be noted (and this is kind of a big negative for me) that the inflator is not a screw on Schrader valve attachment, as shown in the product photo. It's a lever locking chuck. Not a deal breaker but I really prefer the screw-on version. Not sure I would have bought it if I had known.

A heavy non functioning object.... Air compressor is very poor, and the Battery Start strength is almost non existent..... Tested and tried to use several times before I gave my $99.00 Stanley to my neighbor who fiddles with junk... Bought it because of the "Stainley brand value".. Usually is good.. Not this heavy junk.. Too much going on in it maybe... Bought an Audew online about a 1/4 of the size and comes in a zipped case.. Works way better than the Stanley.. I have a Craftsman air compressor that I bought 4 when they were on sale for like 12 bucks.. Gave them to family.. Everyone loves them... Again I am very disappointed in the Stanley... I have many more Stanley products that are just fine.. But not this item.. I wanted to return it to sams.. but no... so lost a hundred dollars....

I bought this about 3 years ago and use it frequently. Works well for filling up tires, especially with the auto stop feature—just choose the PSI and let it run. It’s great for camping too. Plug in all your devices and charge whenever and wherever you need it.

We've had this for a few months with little overall usage, and the battery will no longer hold a full charge. The best you are able to get is 50%, which is enough to inflate 1, MAYBE 2 tires. Jump starting is the luck of the draw. I have had to jump my neighbor's car a few times this year and 25% of the time does it have enough battery power to actually jump the car without another full (50%) charge.

Great concept, and semi functional for a 30psi tire fill: anything above that you are sunk. The battery charger does not work. I have returned two of these, thinking that the first one was simply defective, but alas the second one didn't work as advertised either. Don't waste your time and money on this product.

The first unit I bought lasted 16 months. I liked the unit but it lasted a fraction of the time compared to the Craftsman that had lasted for years and had more functionality. I figured I’d give it one more shot and buy another. It was dead right out of the box. It was clearly never tested at the factory. The display didn’t work and the keys were slightly pushed into the unit. Stanley, after all these years, you still continue the low end reputation you have earned.

Wow great price and works great