JNC550A

People this is a Great thing to have in your car, Has a light ,air pump, USB port . Tell when needing to be charged. I keep mine in the house when it's cold and have a power outage and have a light and a Phone charger and also for a lot of other things now that us the USB port!!!!

Definitely worth the investment. Works great at jumping my car battery. Takes a while to fully charge when used a lot. The air pump takes a little longer than I like to fill tires though. Overall a great item to have around.

I bought the JNC550A, which is the booster pack with the air compressor back in April. I charged it up until the meter/gauge read "13V/FULL", then I threw it in my truck, which was where is sat for roughly 4 months. It wasn't until about ten days ago that we were having trouble with the alternator on one of our delivery trucks, so I took the box out of my truck, checked the meter/gauge, it had dropped to 12.8V, so I topped it off and put it in the delivery truck. When I was putting the booster box back into my vehicle, I noticed one of my tires was low, so I figured I'd try the air compressor. After I connected the hose, pressure gauge on the compressor read 25psi, so I double checked it with a separate tire gauge and it was close. So I turned on the compressor and it took roughly 4 minutes to bring my mid size SUV tire from 25psi to 32psi. Then, two days later my friend had a complete flat on a compact car and it took roughly 4 minutes again to air the tire up to about 22ish (limp-able) psi to get the car to the shop. All in all, for the price, I'm sorta impressed. It's not a record breaker when airing up tires, but it will get you out of a jam, be it a flat tire, a dead battery, or airing up an air mattress/yoga ball/raft, and the battery life seems to be real sufficient. Oh, and it has an LED light on it, too, that will either stay constant or flash.

This is a good battery, a few tweaks could have made it a great one. As far as the primary function as a jump box, I have zero complaints. I use it to jumpstart my mower and it has performed every time. I was looking for a battery that was not lithium because I did not want a spontaneous trunk fire; this fit the bill. The reason for 4 stars is the weak and very loud air pump (but that is not why I bought this so it will probably never be used). Also, cable management could be better - there is a strange way that the +/- cables wrap around the sides of the box and the clamps tuck into a pocket - this takes a bit of work. Also, the 120v and 12v charging cables are just loose with no onboard storage - I hope I can find them when I need them. Also, the documentation is lacking quiet a bit, just know that to turn the light on you have to hold the switch for 2-3 seconds.

I've had a number of jump boxes with air compressors in them over the years. And they have all held up very well. But they definitely needed to be charged every few months. So I scheduled a reminder to do so. I purchased this one in October 2023 and have used it any number of times (the compressor more than the jumper) and it holds an incredible charge. I just spent the past two weeks with a tire going flat and I used it almost every day to top the tire off. The compressor had to run at least 4-5 minutes a shot. After I got a new tire, I thought, "well, this will need to be charged". So I took it in the house and after about 15 seconds, it registered "full". IT DIDN'T NEED A CHARGE. That's amazing. This is hands down the best jumper box I've ever owned. HIGHLY RECOMMEND.

Don't buy, I used it about five times to pump up bike tires, and the cheap plastic lock down on the air hose broke, now they don't want to help me get the repair part. $110.00 and they can't make it easy, and just send the part, I sent in my proof of purchase and paperwork they needed. I would just go buy a dewalt or milwaukee system if I did it again. Funny, now they want me to pay shipping to return for repair of $15. Pound sand JNC Don't buy, bad customer service

I have used it multiple times to put air in car tires. I like the fact that you don't have to plug it into something for it to work. Just push the hose end on to the car valve stem, flip the lever to make it snug, turn it on and watch the dial. Easy. Note that it is not as fast the air pumps at a gas station, but it does the job. Also used it to fill up some sports equipment. I should have bought one of these years ago!

Like all JNC products, this is the gold standard. Plenty of starting power. Only "complaint" is the weight....too heavy for my wife to use, so I bought her a lithium jumper that weighs about a pound! Also, you will eventually trip he heat safety on the air compressor if you try to blow up a flat 20" truck tire! Also, I like the safety features on this one; I wish my JNC 660 had them.