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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

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

5.0 8 reviews
Regular price $136.98 USD
Regular price $260.99 USD Sale price $136.98 USD
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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

  • 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 it’s 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.
  • WHAT’S 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.

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.

Amperage 1000 Amps
Battery Capacity 2150 Milliamp Hours
Peak Output Current 1000 Amps
Unit Count 1.0 Count
Item Weight 2.4 Pounds
Product Dimensions 4.61"D x 8.19"W x 4.21"H
Battery Cell Composition Lithium
Manufacturer Part Number GB40
Manufacturer Warranty Description 1-Year Limited Warranty
Vehicle Service Type ATV, Motorcycle, Passenger Car, RV, Tractor, Truck, UTV, Van, Watercraft
Global Trade Identification Number 00046221150025
Compatible with Vehicle Type ATV, Motorcycle, Passenger Car, RV, Tractor, Truck, UTV, Van, Watercraft
Voltage 12 Volts
Battery Type Lithium
Item Type Name 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
Specification Met UL
Item Dimensions D x W x H 4.61"D x 8.19"W x 4.21"H
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
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Customer Reviews

5.0
Based on 8 reviews
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★★★★★

Compact and reliable jump starter!

I'm really happy with this jump starter. Its small size makes it easy to keep in my car, but it's still powerful and dependable when I need it. I've already used it twice for a dead battery. Overall, it seems sturdy and reliable.

Verified Purchase

Bryan P. · May 2026

★★★★★

Ich bin echt happy mit dem NOCO Boost GB40. Das Gerät macht einen soliden Eindruck und ich fühle mich einfach besser, wenn ich es im Auto habe. Besonders als Starthilfe ist diese kompakte Variante mega praktisch, weil man im Notfall schnell handeln kann, ohne auf andere angewiesen zu sein. Es ist außerdem handlich und lässt sich gut verstauen. Die Bedienung ist einfach und alltagstauglich. Insgesamt ist es eine nützliche Kombination aus Starthilfe und Powerbank, die ihren Job zuverlässig macht. Klarer Tipp für unterwegs oder als Sicherheitsreserve im Auto.

Verified Purchase

Slawek K. · May 2026

★★★★★

Compact and Effective

This jump starter is one of those tools you hope you won’t need, but it’s such a relief to have on hand! It's small enough to fit in my trunk or backseat without taking up much room, but it packs a punch when it comes to jumping a dead battery without any fuss. I appreciate how user-friendly it is, especially since I’m not the most car-savvy person. The instructions are clear, the clamps feel solid, and the safety features are reassuring when I’m connecting it—no worries about harming my car or myself. It definitely saved me from waiting for roadside assistance, which is a plus! Overall, this little booster is worth it. It's dependable, handy, and a lifesaver when you're in a bind.

Verified Purchase

Lila P. · May 2026

★★★★★

Great product, really good quality, and it charges fast. I'm satisfied with it.

Verified Purchase

M R. · May 2026

★★★★★

It does exactly what it says it will do.

Verified Purchase

L N. · May 2026

★★★★★

Compact Yet Mighty

This jump starter is one of those things you hope you won’t need, but you’re so grateful to have it when you do. It’s small enough to fit in the trunk or back seat without taking up much space, yet it has enough power to jump start a dead battery quickly and easily. I really like how simple it is to use, even for someone like me who’s not familiar with cars. The instructions are clear, the clamps seem sturdy, and the safety features make me feel secure when hooking it up, so I don’t worry about damaging my car or myself. It saved me from waiting for roadside assistance, which is great! All in all, this little jump starter is so worth it. It’s reliable, handy, and a true lifesaver when you need it.

Verified Purchase

Liam H. · May 2026

★★★★★

I've been pretty happy with the NOCO Boost GB40 as a jump starter. When it's charged up, it works great for me, and I've used it a few times without a hitch. It's nice and compact, which makes it way easier to handle than regular jumper cables. The only downside I've noticed is the battery drain when it’s just sitting there. I usually charge it fully and keep it in my trunk for emergency situations, but those don't come up often, and more than once I've found the battery completely dead when I finally needed it months later. So, if you have a habit of checking and recharging regularly or need it often, you'll be fine. But if you're hoping to just charge it once and leave it for ages, you might want to check on it more often than you think. I've also tried to help other people with it, but sometimes the same issue pops up—it’s already drained from sitting unused too long. I don't know how much of this is just how lithium batteries behave, especially with the temperature fluctuations in cars, but it’s something to keep in mind if you want to rely on it as a backup. Overall, it’s a solid jump starter and really handy when kept charged, so just remember to top it off now and then.

Verified Purchase

Daniel R. · May 2026

★★★★★

J'ai déjà utilisé ce produit au Canada, et à ma surprise, il fonctionne super bien ici aussi. Je l'ai essayé sur une batterie de moto et elle a démarré en un rien de temps, juste en raccordant les câbles. C'est de la bonne qualité, surtout les pinces. Je suis vraiment content de cet achat. C'est rapide, simple et efficace, et tout vient avec une petite housse de rangement. Le seul petit bémol, c'est que la boîte de rangement solide se vend séparément et ça fait un peu cher.

Verified Purchase

Terry S. · June 2026

Customer review photo