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NOCO

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

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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Nov 11
Order within 22 hours and 49 minutes
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Features

  • START DEAD BATTERIES Instantly start dead batteries with 1000 amps of peak lithium power. Up to 20 starts per charge on engines up to 6.0L gas and 3.0L diesel.
  • ULTRASAFE TECHNOLOGY Engineered with patented spark-proof and reverse polarity protection for foolproof connections to any 12V vehicle - no sparks, no wrong connections.
  • PORTABLE POWER BANK Integrated power bank delivers emergency power to smartphones, tablets, and more. Recharges in 3 hours so its ready when it matters most.
  • INTEGRATED LED FLASHLIGHT Precision-engineered 100-lumen LED with 7 light modes, including SOS and strobe. Illuminate repairs, emergencies, or low-light environments.
  • COMPACT YET POWERFUL High-discharge lithium technology delivers exceptional starting performance in a compact 2.5 lb form factor - perfectly sized for glove boxes and emergency kits.
  • BUILT TOUGH Rugged IP65-rated housing with rubberized over-molding protects against water, dust, and impact. Includes high-conductivity clamps for maximum energy transfer.
  • WHATS IN THE BOX GB40 jump starter, heavy-duty clamps, USB-C charging cable, and microfiber storage bag. Backed by a 1-year warranty and engineered in the USA.

Description

The NOCO Boost GB40 is a compact yet powerful 1000-amp lithium jump starter designed to safely jump start a dead car battery in seconds—perfect for cars, trucks, motorcycles, ATVs, boats, SUVs, vans, and more. This portable car battery jump starter delivers up to 20 jump starts on a single charge and is rated for gasoline engines up to 6.0 liters and diesel engines up to 3.0 liters. Engineered with UltraSafe Technology, it features spark-proof connections and reverse polarity protection, making it a safe and mistake- proof car battery booster for any 12-volt vehicle. It doubles as a portable USB-C power bank for charging smartphones, tablets, and other devices when it matters most, and includes an integrated 100-lumen LED flashlight with seven light modes, including SOS and emergency strobe—ideal for night use, roadside visibility, or emergencies. With an ultra-compact, rugged design, IP65-rated enclosure, and rubberized over-molded casing, this battery jump starter pack is built tough to withstand water, dust, drops, and rough handling. The GB40 includes heavy-duty jumper cables, a USB-C charging cable, and a microfiber storage bag, all backed by a 1-year warranty and proudly designed in the USA. Whether you’re looking for a car jump starter, battery jump box, jumper pack, power pack jump starter, or a reliable jump starter battery pack to keep in your glovebox, the GB40 delivers unmatched performance, trusted durability, and peace of mind—on the road, off the grid, or wherever your next adventure takes you.

Brand: NOCO


Product Dimensions: 4.61"D x 8.19"W x 4.21"H


Item Weight: 2.4 Pounds


Amperage: 1000 Amps


Peak Output Current: 1000 Amps


Brand: ‎NOCO


Product Dimensions: ‎4.61"D x 8.19"W x 4.21"H


Item Weight: ‎2.4 Pounds


Amperage: ‎1000 Amps


Peak Output Current: ‎1000 Amps


Specification Met: ‎UL


Manufacturer: ‎NOCO


UPC: ‎046221150025


Global Trade Identification Number: ‎25


Automotive Fit Type: ‎Universal Fit


Model: ‎GB40


Item Weight: ‎2.4 pounds


Item model number: ‎GB40


Batteries: ‎Lithium Metal batteries required. (included)


Is Discontinued By Manufacturer: ‎No


Exterior: ‎Machined


Manufacturer Part Number: ‎GB40


OEM Part Number: ‎GB40


Mirror Adjustment: ‎insect control


Bulb Type: ‎LED


Special Features: ‎100 Lumen LED Flashlight, 1000A 12V Portable Lithium Car Battery Jump Starter, Portable Power Bank for USB Devices, Reverse Polarity and Spark-Proof Protection


Date First Available: January 1, 2010


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Nov 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Device re charges really quick
The NOCO Boost GB40 is a highly recommended addition to any vehicle's emergency kit. It is a reliable, high-quality, and user-friendly device that performs its primary function—safely jump-starting a vehicle—with exceptional competence. The added utility of the power bank and flashlight makes it an outstanding investment that provides genuine peace of mind. While larger engines may require a step-up model, for the vast majority of drivers, the GB40 is the perfect blend of power, portability, and advanced safety. ... show more
Reviewed in the United States on October 10, 2025 by adrian givens
    • Very Powerful and Reliable — Perfect for Personal and Business Use
I’m extremely satisfied with the NOCO Boost Sport. It’s compact, strong, and easy to use. I use it both personally and for my auto parts business, where I often buy salvage vehicles that need to be started. This jump starter has been tested and works perfectly — I’ve started up to 4 vehicles with dead batteries using the boost mode and around 6 vehicles with low charge without any issues. It’s very practical, charges fast, and feels durable. I would definitely buy it again. Highly recommended for anyone who needs a reliable jump starter for daily or professional use! ... show more
Reviewed in the United States on October 11, 2025 by jose ricardo quezada fernandez
    • Awesome Little Pack
This is by far the best thing you can get for yourself or for those who travel alone. It takes about 2 hours to charge the pack. It functions very well for its size and weight. It's small enough to fit under a seat for easy access. This has come in handy when Jump starting a dead battery. I was able to jump a dead battery 4 different times after I fully charged the pack itself. ... show more
Reviewed in the United States on October 18, 2025 by ReAnna P
    • Great product and price
This is definitely a must have it you own a vehicle. Holds a great charge and does what it supposed to do. Depending on usage, I would suggest charging it after every 2nd use.
Reviewed in the United States on October 20, 2025 by eddie boone
    • works, but could use some refinement.
so far so good, it works and is simple to use. but the on-off button or the light button is easily turned on when you throw it in the bag it came with. other than that, i really wish it had more USB connections than the one USB-A connection. which is weird because the charge port is USB-C
Reviewed in the United States on October 23, 2025 by David Lee
    • NOCO Boost Plus GB40
The NOCO Boost Plus GB40 is one of the best purchases I have ever made. Now, three more members of my family have one. I purchased one for my motorcycle since sometimes I don’t ride for a while due to travel or weather. This gives me peace of mind knowing I can start the motorcycle no matter what. I once had to use it when commuting from work because I didn’t notice I had left the flashlights on all day. Eventually, I ended up getting a GENIUS5, also from NOCO, to keep my battery charged. Since then, I haven’t used the GB40, but I still keep it in my pannier, charged just in case. I was so happy with the GB40 that I recommended it to a family member. They got it and, fortunately, didn’t need to use it. Then, on a recent trip to visit them, one of their cars had been parked for a couple of days with some lights turned on. The battery was completely dead, showing less than a Volt on a multimeter. Of course, the NOCO starter didn’t recognize the battery as it was too low. We used the boost mode and were able to start the car with no issues. My family was so happy with the result that they bought two more to have one in each car. What I like: It has safety checks to prevent sparks, shorts, and reverse polarity (this also detects the voltage on the battery, which means if the battery has very low charge, it will fail to start in the normal mode). The boost mode disables all safety checks and works similarly to using cables from one car to another. This is a bit risky and you don’t want to use it often, but when you need it, it’s a relief to have. The cables are short and seem of good quality. The crocodile clamps have a firm grip without damaging battery connectors. It’s not bulky; I keep mine in one of the motorcycle panniers and it doesn’t take up much space. I probably should have bought the GB20, which also has the boost mode but is cheaper, and for a motorcycle would be more than enough. However, I vaguely remember it was not available when I got mine. I don’t regret it, though, as the GB40 can start a motorcycle (even a car) several times before needing to be charged again. You can use it as a lamp or emergency light, and also as a power bank for your phone or any other small device. What I don’t like: Storing it in the provided bag works but feels a bit messy. Other models, such as the GB70, can accommodate the clamps on the starter, which seems much cleaner. There is a case you can buy, but that will consume space, which, in my case using a motorcycle, is not much of an option. The boost mode is not really a boost, just a safety-disabled mode. I don’t like when companies use misleading names just to have a selling point. About the specs: I have no way to verify the claimed specs in the description, such as the 1000 Amps of discharge, but from a user’s perspective, it works with cars and motorcycles with no issues, even with flat dead batteries. In conclusion, I think this is a must-have. Hopefully, you don’t need to use it, but like insurance, you’ll be really happy to have it if you ever find yourself in a situation where you need it. ... show more
Reviewed in the United States on July 31, 2024 by W. O.
    • My go-to for a fleet of 53 trucks
Best jump starter ive used. I manage a fleet of 53 trucks and have gone through many jump packs, both expensive and cheap, large and small. I bought one of these over 2 years ago for the fleet, and its still rockin like new. It holds its charge and is able to do multiple jumps on a charge. The best part is how small it is, I have had alternators die or belts fall off, and was able to hook this jumper up to the battery, close the hood, and drive back to the shop. That itself earns 5 stars, saved me a few tow truck bills. Since its small I have no problem handing it to someone and they can keep it in the truck just in case. Finally decided to buy one for myself after testing it out on the fleet for so long. If its on sale less than $100, definitely buy it! ... show more
Reviewed in the United States on September 1, 2025 by Beelo

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