WOLFBOX 4000A Jump Starter,12V Car Battery Jump Starter with 65W Quick Charger,LED Display,24000mAh Portable Jump Starter Battery Pack(10L Gas 10L Diesel Engine) with Booster,LED Light,Jumper Cables

I ordered this one since my previous bulky jump started failed to jump start my Lincoln MKT that had been sitting unused in the garage for several months. It was a last ditch effort before I would have to call a towing service. The Wolfbox arrived the next day at 70% so I charged it to 100% in less than 1 hour and off to the garage. Hooked up the new unit and it wouldn't start the car. On closer exam the unit displayed Low on the screen , so following instruction I pushed the Boost button and the car lights came on and and it starteded immediately. Drove the car out of the garage and off for a 20 mile ride to charge up the battery. Strongly recommend this unit. It really is powerful and far superior than three other units I have had over the years.

My 6.4L Hemi is notoriously hard to jump when it’s really dead. AAA has sent tow trucks with jump boxes that don’t have the capacity, my other cars can’t get the job done, etc. I was skeptical that this compact jump box (The 4000 model) could get it done, but it handled it with no problem. It needed the boost on, but that seems normal and I have no problem with it. I’ll have this in my vehicle at all times and I’ll probably buy another for my wife. Totally worth the price. Couldn’t recommend it more.

This is a must have for anyone operating a motor vehicle.I received mine 2 weeks ago. I haven’t used it to charge a phone or other accessory, but it has jumped 5 vehicles since then. Boost setting drains the charge by about 2%, but like a pack of wolves…they get the job done.The display is great, because it shows EXACTLY how much charge is left.Do not use with less than 50% charge.Get it, and you’ll be your own best friend.I friggen love this thing.

WOW…. It’s everything they said it was and more than I thought it was😎👍👍👍.Very well put together and packaged with class. I used it on my farm truck that wouldn’t even start to turn over. Put the Wolfbox on and it came to life.I put this one in my wife’s car and she and I have decided to buy one of these for the kids cars for Christmas this year.

I bought two of these to go into graduation gift baskets for nephews as they were moving out of home. They are easy to use and were a great rescue when they needed to get to work. Value is good, compact and portable so cable lengths are short. I will buy more for additional "welcome" to adulthood baskets.

must have for the winter. jumped my car multiple times because I had a dying battery (whoops) it helped me get around that until I got a new battery.it makes me feel safer to have this helped my family out as well haven't really needed to charge it yet.

This is the way to go! This will jump start your car with no problems. Used it two times on our car when the battery would loose charge due to a bad cell. All I needed to do was hook up the jumper, did not need to push the boost, it has enough to fast charge the battery in less than a minute when got the green light to start the car. I have not charged the jumper yet as it came with 75% charge and after using it twice it still has 72% left. This jumper has the power to get the job done with power to spare. My wife and I love this jumper and going to get another one for my truck.

This seems to be a really good product. I needed it the day after I received it, super powerful, easy to use, clear display instructions. If you think you might ever need to jump start your car battery and don't want to try to find some one to give your car a jump, this is seriously worth the money. Be aware you'll need a 65a USB c charger to charge the main unit. It doesn't come with one.