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NOCO

NOCO Boost GB40 12V 1000A UltraSafe Portable Lithium Jump Starter | Spark-Proof + Reverse Polarity Protection - Power Bank - 100-Lumen LED Flashlight - For 6.0L Gas and 3.0L Diesel Engines

  • Based on 128,324 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Jul 25
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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


Battery Cell Composition: Lithium


Voltage: 12 Volts


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


Vehicle Service Type: ATV, Motorcycle, Passenger Car, RV, Tractor, Truck, UTV, Van, Watercraft


Battery Type: Lithium


Voltage: 12 Volts


Compatible with Vehicle Type: ATV, Motorcycle, Passenger Car, RV, Tractor, Truck, UTV, Van, Watercraft


Battery Capacity: 2150 Milliamp Hours


Amperage: 1000 Amps


Peak Output Current: 1000 Amps


Automotive Fit Type: Universal Fit


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


Item Weight: 2.4 Pounds


Specification Met: UL


Brand Name: NOCO


Manufacturer Part Number: GB40


Manufacturer: NOCO


UPC: 046221150025


Global Trade Identification Number: 25


Unit Count: 1.0 Count


Included Components: 1-Year Limited Warranty, GB40 Portable Car Battery Jump Starter Pack, Heavy-Duty Booster Clamps, Microfiber Storage Bag, USB-C Charging Cable, User Guide for Jump Starter


Item Type Name: NOCO Boost Plus GB40 1000 Amp 12-Volt UltraSafe Lithium Jump Starter Box, Car Battery Booster Pack, Portable Power Bank Charger, And Jumper Cables For 6-Liter Gasoline And 3-Liter Diesel Engines


Model Number: GB40


Manufacturer Warranty Description: 1-Year Limited Warranty


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jul 25

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.

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Leasing options through Acima may also be available during checkout.

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Similar Products

Top Amazon Reviews

    • Works Extremely Well When Charged, but Long-Term Battery Drain Limits Emergency Readiness
Overall, I have been very impressed with the NOCO Boost GB40 as an actual jump starter. When charged and ready to use, it has worked reliably for me multiple times over the years and has successfully jumped my vehicle without much trouble. The compact size and portability also make it much more convenient than dealing with traditional jumper cables. The biggest issue I have experienced is long-term battery retention during storage. I would fully charge the unit to 100% and keep it in my trunk specifically for rare emergency situations, but because those situations are thankfully uncommon, I would often discover that the internal battery had completely drained by the time I actually needed it months later. In practice, that means this works best for people who either: regularly maintain and recharge the unit, frequently use it, or own vehicles that commonly need jump starts. If you are expecting to charge it once and forget about it for extremely long periods, you may want to check the battery status more regularly than expected. I also occasionally tried to use it to help other stranded drivers, but the same issue sometimes came up where the unit had already self-discharged from sitting unused too long in the trunk. To be fair, I do not know how much of this is normal lithium battery behavior versus the device itself, especially considering temperature changes inside vehicles over long periods. But it is still something buyers should realistically know before relying on it as a long-term untouched emergency backup. Overall, I still think it is an excellent portable jump starter and a very useful tool when properly maintained and kept charged. I just recommend periodically checking and topping it off instead of assuming it will stay at full charge indefinitely in storage. ... show more
Reviewed in the United States on May 16, 2026 by Daniel Rungo
    • Reliable and excellent quality
I made it a point to put this in my car (charged) for long distance and winter-drives. Pros: Excellent design and form factor; jump starts my Honda Passport in one try - always; charging id fast; the controls are intuitive; very light weight; one charge serves many jump-starts; Cons: Not found anything yet. ... show more
Reviewed in the United States on July 13, 2026 by Subir Biswas
    • A Must-Have for Winter Driving
Review Image by Klein
This jump starter is very useful, especially in the winter. It is compact, easy to keep in the car, and gives me much more peace of mind during cold weather. The setup is simple, and it feels reliable when the battery is weak or the car does not start. For winter driving, this is definitely something worth having in the vehicle. ... show more
Reviewed in the United States on July 6, 2026 by Klein
    • Quality product
One of the greatest investments I've made yet.. Everything works well and it's saved me a few times from being stranded!! Well worth the extra couple bucks!
Reviewed in the United States on July 11, 2026 by D4ZeD
    • Small cars
Review Image by Arlen Lazo
Review Image by Arlen Lazo
I bought this portable starter hoping to use it in my work with cranes, but in my experience it has not been the best option for large vehicles or heavily discharged batteries. With its 1000 amps, I think it works best for cars, light trucks or occasional emergencies. What I liked the least is that the battery discharges relatively quickly, especially after a few uses. This forced me to be aware of recharging it frequently to make sure it was ready when I needed it. In its favor, it is compact, easy to transport and the integrated flashlight is practical in night situations. For private drivers or lighter vehicles it can be a good backup tool, but for heavy work with cranes and frequent starts I would recommend looking for a model with greater capacity and amperage. ... show more
Reviewed in the United States on May 31, 2026 by Arlen Lazo
    • Saved me from calling a tow
For the price point it got me out of a Northwest PA subzero weather debacle this past winter. Like a dummy I left my lights on while out to dinner for about 3-4 hours. Got back and ignition just clicks. Popped the hood hooked up the GB40 and turned the key. Off I went. The thing was sitting in my truck for atleast 6 months prior without a recent charge. Pretty impressive. Worked great. Thinking about upgrading soon. ... show more
Reviewed in the United States on July 7, 2026 by BCardot
    • An essential item for your car!
Got my car back from the shop with a loose connection, which forced me to have to jump start my car every time I wanted to drive it over the weekend while I waited for the shop to reopen. My friend let me borrow this jump starter and it was a life saver! Easy to use, worked perfectly, and quick to charge after several uses. I immediately bought one for myself and my son! ... show more
Reviewed in the United States on July 17, 2026 by Gretchen
    • Great product
Battery was so dead the jumpstarted could not recognized automatically but override button helped and I started the car in the end. This is great product.
Reviewed in the United States on July 17, 2026 by ManBearPig

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