My absolute all time favorite Product !! I have bought 10 Stanley Fat Maxes. Every family member has received one For birthday or Christmas!!! jumped started 15-25 cars with it pumped up 20-30 tires! checked 8 Alternators! Used 20+ tires for power outages Used 5 times for road side Emergencies With the Flashing Light!

Have already used it 3 times and works great and keeps a charge for a long time! Would recommend to anyone and will buy again when I need to a new one

Works efficiently compared to older models. Important gadget to have around for jump start and to pump up tires. Also, Sam's Club honors the Fatmax warranty well. My previous one died after 6 months, Sam's Club refunded the cost price right away.

Gave this to my college kid who drives back and forth on country roads. He had to use it within the month and would otherwise have been stranded for some time.

I had the previous model. The jumpstart capability was something left to be desired (typically would only "help" if another vehicle didn't have the amps to jump another vehicle, I ran this in parallel). The compressor was great. I went to Sams, finally frustrated with the non-jumps. They let me swap for the newer (this) model. Everything is updated and better. I think the compressor could be a little better however as I was pumping a trailer tire up to 60 psi (this is rated for 120). The connector to the compressor internally broke (was still in the compressor hose, could see it was plastic). High heat, high pressure, more than likely made it give up. No worries, Sams swapped again for a new one. This one (so far) is working great. Only reason for 4 instead of 5 stars is because the internal compressor connector is plastic. I know and saw it, and it's bound to break again. Thankfully, Sams is great with returns!

When I used this, fully charged, as an inflator to air up tires on my utility trailer, it took forever and the battery was showing on the gauge as nearly half charged after just a few minutes. I then tried it on my riding lawnmower’s tires, and again, it was slow; I managed to air up the tire on the other side as quickly using an old-fashioned bicycle pump. A shame, because if it worked well it would have been handy to have in my garage, plugged in and ready to go whenever needed.

The hose has disconnected from the air compressor. Going to return air compressor for a replacement.

I’ve been using these for years when it had the old electrical plug at plug. I bought two in the last two weeks. One wouldn’t even inflate two tires before the air compressor burned out. I bought the second one two weeks ago and I’ve inflated like four tires and a compressor burned out today. The only reason I’m going for a third one is cause I’m traveling and I have no other options, very disappointed right now

For whatevrr reason the jumpbox I have has never been able to jumpstart any car I've ever tried to jump. The compressor and USB ports are fine, but that about it.

Purchased this which I thought was new, but was actually a return to Sam's Club (seal was carefully broken and some Christmas paper on the package). Would not hold a charge, which is why it was returned the first time. Returned.