I've only had to use it once to pump up a tire, so far, but it seemed to work fine. I'm not quite sure how long it will hold a charge. Time will tell.

This is the second one I bought. The first one lasted3 years then just quit. I replaced it with this one and it has been about 6 weeks and the thing won't turn off!

VERY nice unit! It has a LOT of good functions and it’s easy to store when not in use. The display is easy to read and follow. Love this portable power unit!

Started a car that wouldn’t start with jumper cables for 30 minutes. Put this jump starter on and it started it immediately!!! Also great for boats! We have had to help people on the lake too. We recommend this product 100%!!

I bought this and it does work, cables are short, you also need a extension cord to charge it my last one came with a cord to charge it.. It does do the job. I also bought it and now it is 10.00 off, go figure.

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.

This is such a great buy for anyone who owns a car. To know that you can charge your own battery if it dies. That is a great feeling. The air compressor is a great thing to have in it as well. The feature of checking your alternated is a plus.

This doesn’t come with a charger. The charger must be bought separately online or at some other store in order for it to work. Very impractical and inconvenient. I returned it.

Haven't used it yet, but it has anything you need for your car. My daughter has the same exact one and I used it to fill my tires up and it worked excellently. Have just had mine a couple of weeks.

It arrived a week ago and just barely charging it. Seems like good product based off other reviewers. I have not had a chance to use it yet. Will update hopefully soon.