I bought this about a month ago. I've attempted to use it twice to jump start my car and twice to fill a tire from 22 to 35 psi. The jump starts failed as the jump pack was too weak, and I just had to get cables and jump start it that way. The air compressor is also terribly weak. It would probably take 30+ minutes for the mentioned situation. There's no way you're using this for a tire 20psi or lower. My ryobi air compressor that was $20 is far superior. There's also much smaller jump packs that are more powerful. Overall, this jump pack has many options, but fails to meet performance at a single one. To boot, I bought for $90 (in a pinch) and it's now less than half that price. Just my luck, but I will be returning this, if possible.

I bought it this december 2017 because my car's battery is failing. I used it almost right away. I also bought the protecton plan as it comes with 1 year warranty but I bought the 3 year so I will be cover until 2020 as this items usually fail during the second year. I know I will not use it all the time so, just in case. I even got the square trade protection plan on email. I recomment you to go there and fill out all the information just in case you have to claim it later as you will not know what you did with your papers or the email.

Had this for 3-4 years now and last night there’s a leak in the air line, the battery was good for about 2 years then the charge starts to fail The tire pressure digital gauge is off by so don’t expect it to pump it until your setting . It’s ok , but I wouldn’t pay $70 or more for this unit , I’ll wait until there’s a sale .

Stay away from this piece of junk. People who made this product should be put in jail for making junk like this. First it doesn't come with its own cord to charge. And for most it will fail miserably when you need it the most and get you stranded. 9 out of 10 times it will fail to crank your car/lawn mower. Just run away from it and don't look back.

First one lasted less than 90 days. Compressor went out. Returned to store. Bought another. About a year old, used maybe 3 times, wont hold a charge and shuts off by itself. Cant charge a phone since it wont stay on long enough. Try airing up a tire when it shuts off every 5 seconds. Stanley will not back it up either. Holding by their 1 year warranty.

It is big and bulky, and you have to charge it once a month or so. That's the worst I can say about the Fatmax. If you just need a portable jump starter you may want to look into those small lithium jump starters. The good ones cost a little more, but they're small enough to fit in a glove box and they keep a charge for many months. That said, I'm very happy with the Fatmax. I bought it in case my boat wouldn't start...and it happened this summer, saving the day. My wife and I were out early at the marina to go fishing and the engine wouldn't turn over. No problem, I had the Fatmax and it jumped my Volvo 350 V8 as if it had a brand new battery. Recently I ran into a different issue where the Fat Max came in handy. My boat trailer was stored in an inconvenient spot with no access to power. I was having a hard time figuring out how I was going to put air in the tires before moving it. I didn't have a DC air pump, so I thought. I completely forgot that the Fat Max has a built in air compressor. I was actually searching for battery powered air compressors when the Fat Max popped up. I almost fell over with joy. I took it out to my trailer and pumped up four large tires from 20 to 50 psi. It took awhile but it got the job done with power to spare. It's not that loud for a compressor either. There is something strange where the motor would bog down midway to 50 as if the battery were out of juice. I think it's because my tires were so low. It did happen with each tire but it wasn't a problem. All I had to do was re-start it and it finished to 50 psi at full power without any other interruptions. The best part of this compressor is that you just select the psi and hit the compressor button a second time, you don't have to worry about over-inflating. No cords to deal with and plenty of power. What was going to be a rarely used gadget is now my go to tire inflator. This is a really useful tool and priced right.

I only wish I had read the reviews for this product before I drove a 120 mile round trip to buy one (because my local Sam’s was out of stack). I charged it up all night as instructed, but was still flashing charging the next morning. I then took it outside to put air in my vehicle tires. After screwing the hose to the valve stem, I set the pressure to 35 and started the compressor. It started, but sounded odd, so I stopped it and removed it and put it back on and tried it again and it still made a sound like it was laboring very hard to pump any air at all. It was only about 3 PSI low, so I figured it would take only a few seconds to fill and shut off....5 minutes later, it was still running, so I turned it off. I checked the pressure in the tire and it had not added any air at all. Tried it on a 2nd tire and the same thing happened. This thing is a complete piece of junk. Took it back for a full refund. After seeing the negative reviews, I wish I had read them before I wasted my time on this item. This thing doesn’t even rate a single star.

its heavy, loud when used to air up tires. The speed to add air to low tire was not as fast as I assumed it would be but was faster than other portable compressors. My teenage daughter was able to follow directions to jump start her car without assistance so it is easy to operate with clear directions on the unit.

Returned never used because it does not come with a power cord to charge it up. The unit requires an extension cord to attach to the unit. The unit has the two prong end on the unit which I thought would pull out but it does not. I don't want to have to look for a cord every time it needs charging.

Received as a gift 4 or 5 months ago. Came from Sams. First time used compressor it worked fine for 5 minutes, inflated 2 tires, now runs at a lower speed and doesn't inflate anything. Setting is at 50 psi,tire is at 10 and wont inflate, tried several times. Can't return because no receipt.