I had to return three of these units to get one that may or may not work correctly. I had four tires to add 20 lb on each one and by the fourth Tire the compressor completely died. I recharged it for 2 days and the compressor still did not work. The fourth one is debatable because I didn't need to add that much air to the last tire so I have no idea if it will work so I returned it after filling the tire. Be cautious

Charged as instructed. Used to pump up 4 tires that were 5# low. Shut itself down after the last tire and wouldn’t work again for anything. Returned - disappointed since a previous one I bought at Sam’s many years ago worked so well until the battery wouldn’t hold a charge any more.

Really awesome! Disregard other people's "complaints" that there's "no charging" cord that comes with it! The 3 prong plug is right there up front, on the left, use an extension cord. Simple! I grabbed this because I grew tired of air pumps charging $1.00 and higher to use and they often quit (and it's another buck in) or worse unreliable! This one here comes pre-set and you can set it. Now my tires are all happy and inflated! I did use the Alternator check to make sure it was running good and it is (I would guess another 2-3 years life left). I did have to jump start my neighbor's riding lawnmower, just configure it and go! I'm GLAD I got this instead of investing in a jumper cable (My old ones were commercial quality and they were nearly 50+ years old and just fell into rot and decay.) If you use it, you should remember to recharge it! If you really, really used it (such as I did, inflate all 4 of my tires, my spare, my family member's 4 tires too), you should charge it immediately. For a full charge (after nearly draining the battery down to very low) - it took about 4 hours to charge up!

I bought this to see if I could save a truck battery that sat idle all winter. It took just 3 hours for it to start the truck. I had tried to jump with 2 cars and not even a click from the battery. The compressor is even more impressive. I hooked it up and in a matter of 6 minutes a completely flat tire was pumped up to 32 lbs. I am a woman who has never jumped my own car and can just barely manage putting air in tire at Kroger. I was surprised how easy this was to use from out of the box. READ INSTRUCTIONS CAREFULLY BEFORE YOU TRY TO USE..............it will save you many headaches.

I tried filling my RV tire to 90 psi using the compressor feature. The Fatmax is rated to 120 psi. When it reached 88 psi the hose popped out of the compressor and it cannot be reconnected. Also, the LED lights did not work right out of the box. I can only conclude this is a low quality product with many defects. I returned it within the first week after purchase.

I'm glad I bought this charging unit. I used it after I purchased it to charge my daughter's dead battery. After it was hooked up to the battery and turned on, my daughter turned the key in the ignition and her car started up without any hesitation. It has so many nice features; check your alternator, an air compressor and even a light if you're in the dark. I highly recommend it.

Wouldn’t start my V6 bmw even after leaving it hooked up for over and hour.

I received a defective unit from this seller. the Stanley FatMax 1000 was completely dead when delivered and would not even take a charge. Returned item.

The power kit 1000Ais awesome but I didn't get the right one i got 1200 I'm not happy that's not what I paid for. Y'all aren't going to do anything I've talk to 2 guys an promise they would big joke.

This product works just the way it is advertised. The wife's vehicle had a dead battery and during that day I had jump started her vehicle three times with this product. Even after jump starting the vehicle after three times it still has a charge.