NOCO Boost GB40 1000A UltraSafe Jump Starter 12V Lithium Battery Booster Pack Portable Jump Box Power Bank Jumper

I actually bought the NOCO Boost GB40 because of a camping trip with family. My truck battery died out there, and my brother-in-law pulled his GB40 out and jumped my truck in seconds. That was all the convincing I needed. As soon as I got home, I ordered one for myself. Since then, I’ve used it a couple of times to help other people, and it’s worked perfectly every time. It’s quick, easy to use, and way more convenient than dealing with jumper cables or hoping someone nearby is available to help. The size is great too — compact enough to keep in the truck without taking up any real space. The GB40 feels solid and well-built, and the safety features give me confidence when I’m hooking it up, especially in less-than-ideal conditions. It holds a charge well, and I like knowing I have it ready just in case something goes wrong with my battery again. Overall, this jump starter has become one of those “must-have” items I keep in my truck at all times. It’s reliable, powerful, and already saved me more than once. I’m glad I bought it, and I definitely recommend it. Read more

This is one of those products you’re glad to have when things go wrong. It’s compact, simple to use, and has more than enough power to jump a dead battery without any hassle. I like that it feels sturdy and the safety features make it almost impossible to mess up. The flashlight is a nice bonus, especially if you’re stuck at night, and the battery holds its charge for a long time, so you’re not constantly recharging it. Overall, it’s a solid, dependable jump starter that’s worth keeping in your car for peace of mind. Read more

This battery jumper works great!!! I had a battery that was brand new but it started giving me trouble. I charged up this jumper and decided to take it with me when I took my pup to in for a check up at the vet. Afterward, my truck would not start. This jumper worked effortlessly and got my truck going on the 1st try. I was so glad I had gotten this. I took my truck back where I got my battery from and they put a new battery in my truck that was the correct required size for my truck. I bought a hard carry case for this jump starter and I take it with me everywhere. It's small, light weight, very easy to use, and it may come in handy again someday. Read more

Since that cold weather a few days ago my car will not start. Tried some jumper cables but my jumper cables were bad so I figured let me just order this on Amazon it’ll come the same day. This thing worked immediately. I just hooked it up and boom car cranked. It’s nice and small too so you can store it in the little baggie. Charging is simple too with the USB-C which is primarily used by a lot of phones nowadays as well so if you need a longer cable for whatever reason you probably already have it. The flashlight on it is quite good as well Read more

This worked perfectly for jump starting my hybrid which was dead. I took off one star because I didn’t find the directions clear and had to watch a few you tube videos to figure it out. After that it was easy as pie! Great device! I’m thinking of getting their trickle charger for the next time the car has to sit and not be used for a while. Great product! Read more

This product truly makes jumper cables obsolete. I purchased this 1 1/2 years ago, charged it, and then stored it in my Honda Accord's trunk. It was not until yesterday, 1 1/2 years later, that I needed it to try to start my car's depleted battery (due the cabin light having been left on overnight). I could see that the NOCO Boost still retained 50% of its charge despite having sat in my trunk for 1 1/2 years. I firmly connected it to my car's battery and immediately my car's dashboard came to life. I waited less than one minute before twisting the ignition key, and on the 2nd attempt (within only seconds of my 1st attempt) - my engine started up. In the past, I have hated to beg strangers to give me a jump, even though I have always carried jumper cables. And AAA has been a nightmare, because whenever have I needed a jump in the past (before buyng the NOCO Boost) - I have had to wait close to 3 hours for AAA to come to me. Then I found out about the NOCO Boost from someone working for AAA who used it to jump an old car of mine. I purchased one immediately. This product is so small, so convenient to use, and mine has proved itself to be so reliable, that I consider it to be a MUST HAVE ! It is sad that a couple reviewers have stated that their product failed to work for them. But with an overall composite star rating of 4.6, clearly almost everyone experiences their product to be reliable. This product should be charged before storing it away. I do not remember whether mine came with a charge. Read more

Great pack, has saved my a$$ a number of times, from starting my suv to starting others without having to carry large cables that get tangled. Has enough power to start high compression gas V8, haven't tried with a diesel, suspect it may start one, but would probably opt for a more powerful model from same brand. I worked at a garage where we had to start cars often, several other brands failed to start cars or did so only for short period before being a brick where this is dependable and long lasting. You do need to charge it, but it actually holds a charge and is useful, best brand I have used and the light is a nice feature. Read more

The NOCO Boost GB40 has been a fantastic addition to my gear. I originally picked it up as a backup jump starter for my EV if the 12V ever died, and it’s performed flawlessly. The unit feels solid, the controls are intuitive, and the overall build quality is excellent. I really appreciate the extra features — the built-in flashlight is bright and genuinely useful, the USB ports make it a convenient power bank, and USB-C charging is a huge plus. The included storage bag keeps everything organized and easy to grab in an emergency. I’m impressed enough that I’m buying one for each of our vehicles. It’s compact, reliable, and well worth having on hand. Read more