Bought to use when needed and to maintain tire pressure. Not yet needed or used. Unable to provide useful review. Unit is actually better than I thought. Hope it works as advertised.

I purchased 2 as Christmas gifts. My nephew has already used his twice. He has it charged and keeps it in the trunk in case of emergency. ex. (Using the compressor in case of a flat, the cable jumpers for the battery)

Had to return. Would not hold a charge at all. Great idea - in theory. Old stock I would suspect since that item is no longer listed on their website.

Excellent device. Holds the charge and can jump start multiple times. Note that the big red knob to turn it on has to be turned clockwise a full 45 degrees until it latches in place. When done you have to turn it back to its resting spot.

This is my second one. I bought one exactly like it years ago. Like all batteries it has a natural life. Just like a car batttery. Eventually you need to replace it. I love the one I had. So, I have now replaced it.

This unit is bigger than some of these new tiny ones, but this one does work! the air pump is nice too - takes some time, but it does work as well. Haven't used the USB ports or lights.

We had a power outage soon after my purchase, and was able to keep USB items charged. Haven't tried the car start option yet, but It revived my m/c battery, instead of having to purchase another. In that, this FatMax has already paid for itself!

We bought this to replace a Cobra one that is similar, but it died! With storm season coming, this is a great item to have around the house and in the car when traveling.

use it all the time. keeps me safe, and I help people out all the time. this and a plug kit keeps all vehicles and trailers moving. EVERYONE should have on in their car

Great little unit just preset pressure desired.The until it hits the desired pressure and cuts off. Jump start works great. Charges up using a standard drop cord.(not included). This unit will charge a cell phone with your charging cord.