NOCO Boost GB40: 1000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables - for 6.0L Gas and 3.0L Diesel Engines

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.

This is a good little jump pack. Handy to have and will jump a car several times. I like the size, the portability, and the ease of charging. I carry in my work vehicle normally, as we are constantly on the go and this has been handy several times. I like that I can jump to get me going and then carry around to be sure I don't get stranded. Simple to use. Way easier than jumping from another car.

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. Keep in mind that I am old and female and I was able to this, by myself, quite easily!! 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.

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.

I did trust this product until I witnessed its power for myself, it's good and it will deliver as promised

When I borrowed an old never used car my dad gave me one of these to jump the car, it never failed me. I have a sports car I only use and got tired of jumping it with my other car. I went straight for one of these but wasn’t sure if the 1000A would start a 3.5 v6 as even jumping it with my car would take awhile. When it got delivered, it had 3 bars of battery and started the car up no problem at all. It’s a little expensive compared to some of the cheaper options but with this one I know I can rely on it and won’t be stranded. Well worth the price. It’s the size of my for arm, with simple design and bright led lighting, it’s rugged so you know it could handle abuse. Usb-c charging and provided with cable. I seen someone give a 1 star because of this. It’s 2026 what do you expect? Supports fast charging. Nicely packaged and come’s with a nice little bag to place everything in. Only thing I don’t like is it uses usb outlet to charge things but I didn’t buy this to charge a phone so don’t really care.

I have a Tahoe that I acquired that had been sitting around in a field for 4 years. During that time the mice got in and chewed on the wiring. So the Tahoe has a short that I can't locate that drains the battery every night. I bought this to start it EVERY morning. It works like a charm. I bought it in August and now it's January. In the summer I usually only have to turn the key once and it will go a few days before needing recharging. Now that it's colder I usually need to turn the key twice and it requires charging every day. I've only seen it not work twice. In both cases I think the battery was especially drained (might have been a time where it set for longer than a day). When I hooked it up the lights on the unit didn't even cycle. It didn't do anything. It's only draw back is the lack of instructions that come with it. So how I use it is I hook it up to the battery, turn it on, and the power lights will cycle. Then I hear a click and assume that's when it's ready. Also because it's lithium you shouldn't charge it when the unit is colder than 32 degrees. If you leave it in your vehicle in the winter and it's below freezing you need to let the unit warm up before charging it. You can use it below freezing just don't charge it until it warms up.

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