Works great. Immediately jumped an 02 Yukon Denali with a completely dead battery straight out of the box. Only took off a star because the clamps could use a little more bite.

So I have attempted to use this device 2 times now And if you are wanting a box to carry around and just watch the display gauge go from 100% to 5% and not actually do anything then this is for you The times I have tried using this it has not worked not even enough to spin the starter in a small car I guess it works best to use it as a flashlight and portable battery charger for your phone Just don’t rely on it to start anything

This is Amazing!!! Fully charged i jump started 5 cars and the battery had only dropped to 75%. Had it in the car several days with temperatures below 0 degrees and it never lost any of its charge. Works so good i bought a second one for the crew at work.

This small device just removed at 10-ton weight from my chest. No more battery worries!! It’s well made, well packaged, and the instruction manual is very well written. You can always tell a lot about a company by reading their manual, if you’re lucky enough to even get a manual! The quality of the manual tells me the company cares, from inventing, designing all the way down to the customer population. After a call to the company, I believe this to be true. For those who need a wall adaptor, the manual says the adaptor needs to be >5V, but that’s not correct. Anyone who’s tried to find a suitable adaptor that’s >5 volts goes into a tailspin trying to figure out what to get, and from where. So I called the maker and confirmed that a 5V adaptor is fine, and I can attest that it works great. For those looking to keep this in their vehicle 24X7, I’d think twice about that. Read the manual or call the co. for more info. The severe winter and summer temps, in a closed vehicle, can get pretty ferocious, and lithium batteries are not all that friendly or safe. If you insist, then at least carry a fire extinguisher suited for lithium. Maybe carrying it all in a small styrofoam chest could help maintain a more moderate temp for them. I love, love this product!!

The media could not be loaded. I bought two of these to have as a safety jump battery for my son and daughter’s car. It works just as well as another car battery. It started my daughter’s big V8 in the dead of winter without any struggling at all. I even left it in the car over the cold Colorado winter and it didn’t loseuch charge and was able to start her car immediately. I can’t say anything bad about these things. Everyone should have one in their car

Works great. It cranks my V6 motor first start.

I haven’t had to use it yet. My brother has one and loves it.

This gadget saved me!! Worked first time. What a life saver

Works great.

Doesn’t work! Won’t shut off