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NOCO

NOCO Boost X GBX55: 1750A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables - for 7.5L Gas and 5.0L Diesel Engines

  • Based on 3,823 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Nov 7
Order within 3 hours and 49 minutes
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Features

  • X FOR EXTREME A new class of lithium jump starters. Rated at 1,750 amps for powerful starts on gas engines up to 7.5L and diesel engines up to 5.0L - built for extreme performance.
  • ULTRASAFE 2.0 Upgraded spark-proof and reverse polarity protection with enhanced thermal efficiency and power management for even safer operation and extended battery life.
  • TURBO CHARGEABLE Recharges in just 1.2 hours via USB-C Power Delivery, or gain enough power for a jump start in just 5 minutes - even from a completely depleted battery.
  • 60-SECOND TIMER Integrated 60-second timer conserves power from its high-voltage design - delivering up to 9 jump starts per charge with extreme energy at every start.
  • CHARGE EVERYTHING 60-watt USB-C Power Delivery lets you charge phones, tablets, laptops, and more. Dual-direction charging turns Boost X into a high-output portable power bank.
  • INTEGRATED LED FLASHLIGHT Precision-engineered 200-lumen LED with 7 light modes, including SOS and strobe. Illuminate repairs, emergencies, or low-light environments.
  • WHATS IN THE BOX GBX55 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 GBX55 Boost X is a new class of portable lithium jump starters—engineered for extreme performance and rated at 1,750 amps to start gas engines up to 7.5 liters and diesel engines up to 5.0 liters. Featuring our upgraded UltraSafe 2.0 technology, it offers spark-proof connections and reverse polarity protection, now with enhanced thermal efficiency and power management for even greater safety and battery life. Designed with a high-voltage output system, the GBX55 includes an integrated 60-second timer to conserve energy—delivering up to 9 jump starts per charge with maximum power on every start. Even if completely depleted, it can gain enough power for a jump start in just 5 minutes or fully recharge in only 1.2 hours via USB-C Power Delivery. A 60-watt USB-C port provides both input and output, turning Boost X into a high-performance power bank for fast charging phones, tablets, laptops, and other USB-C devices. A precision-engineered 200-lumen LED flashlight features seven modes, including SOS and strobe, to light up dark workspaces or help in roadside emergencies. The GBX55 jump starter comes complete with heavy-duty jumper clamps, a USB-C charging cable, and a microfiber storage bag, all backed by a 1-year limited warranty and proudly engineered 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 GBX55 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: 6.34"D x 3.94"W x 9.13"H


Item Weight: 3.4 Pounds


Amperage: 1750 Amps


Peak Output Current: 1750 Amps


Brand: ‎NOCO


Product Dimensions: ‎6.34"D x 3.94"W x 9.13"H


Item Weight: ‎3.4 Pounds


Amperage: ‎1750 Amps


Peak Output Current: ‎1750 Amps


Specification Met: ‎energy


Manufacturer: ‎NOCO


UPC: ‎046221200072


Global Trade Identification Number: ‎72


Automotive Fit Type: ‎Universal Fit


Model: ‎GBX55


Item Weight: ‎3.37 pounds


Item model number: ‎GBX55


Batteries: ‎1 Lithium Ion batteries required.


Exterior: ‎Machined


Manufacturer Part Number: ‎GBX55


OEM Part Number: ‎GBX55


Bulb Type: ‎LED


Special Features: ‎1750A 12V Portable Lithium Car Battery Jump Starter Power Pack, 200 Lumen LED Flashlight with Multiple Modes, including SOS., 60-Watt USB-C Power Delivery Technology, Portable Power Bank for USB Devices, Reverse Polarity and Spark-Proof Protection


Wattage: ‎46 kWh


Date First Available: February 19, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Nov 7

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
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • 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

    • Very please with my purchase
1. Functionality: Works very well for my use. So far, I've used it twice on my 2012 Honda Civic when the temp was -10F and my car wouldn't start. Plug it in, light was chasing, started the engine, boom, works like a charm. 2. Jump Capability: Since I've only used it twice, and on my 2012 Civic, small car, I don't really know how well it works with SUVs & Trucks, but I would hope it work. Will update later if I use it to help out friend's cars. 3. Battery Life: Fully charged, used it twice within two months, drained the battery to half or so, if I remembered correctly. So, I would say you could use it to jump start about 4-5 small cars. Not sure about bigger cars. 4. Ease of use: VERY VERY easy to use. Self-explanatory. Make sure you read up on it or watch video on YouTube on how it work, especially if the battery is completely dead and the light is not chasing and you have to use the "Override" mode. 5. Compactness: VERY VERY compact. I put in my work backpack and bring it with my to work every day in case my car or a friend/coworker's car broke down due to battery drain or something. Or in the sever cold weather of -10F or below and car doesn't start. Overall, I would say it's very useful. Choose your own model and go down if you have to to save money. I bought the NOCO Boost X GBX55 1750A 12V model because I want it to be at least strong enough for my Tundra. ... show more
Reviewed in the United States on March 9, 2025 by Yee
    • A Must-Have for Every Vehicle – Reliable, Powerful, and Compact
The NOCO Boost X GBX55 has officially earned a permanent spot in my car. I’ve used it multiple times already—from jump-starting a completely dead SUV battery to helping a friend with a diesel truck and it hasn’t failed once. The power this thing delivers is impressive for such a compact device. What really sets it apart is the ease of use and safety features. It’s nearly foolproof no sparks, no confusion, just connect and go. The USB-C fast charging is a game changer, and the built-in flashlight is surprisingly bright. It also doubles as a power bank, which is super handy when you're off the grid or during a power outage. If you drive anything especially in cold climates or long trips this is a smart investment. Peace of mind in your glove box! ... show more
Reviewed in the United States on July 24, 2025 by Irene
    • Good Product
I have used it several times and it's never let me down
Reviewed in the United States on October 25, 2025 by Jeffrey R Lampson
    • Ford V8 5.0 Starts Without Hesitation.
Started my 2011 Ford F150 Lariat Super Crew v8 5.0 without issue. Battery was completely dead. I did not check voltage but no lights on entry and no power locks. Connected my fully charged Noco that has been in the vehicle for 2-3 months. Power on. Counted to 40. Truck started as if it was fully charged. -I have about (12) Noco products. None of them have cause me issue or hesitation. The Noco GB40 took some extra work to start the truck in the past. It works well on my V8 4.6, my v6 3.5 and my v6 3.0. The 5.0 is just a little larger and seemed to tax the GB40. First (2) of these specific units were bought from a refurbished. Both were dead on arrival. Bought a new unit. Brand new. No issues. ... show more
Reviewed in the United States on March 14, 2025 by CTLLC
    • Dead after 14 months and 8 uses
The media could not be loaded. Another dead unit. I think the unit works good when it worked but after light use and 14 months it's completely dead and will not take a charge. I understand there's a year warranty but I would not buy this thing again without a seriously longer warranty. Again this was used lightly in my garage or driveway. This was not a unit that traveled around or was used for commercial purposes. I probably used it 8 times at most. Lots of death of the Noco on YouTube. I'm surprised that they don't have a mechanism to swap it out even if I had to pay a surcharge. Maybe that's a hint to Noco as I would be willing to pay a $40 surcharge or something just swap it out for a new one ... show more
Reviewed in the United States on August 12, 2025 by Daniel
    • You need this!
This is the third one I have purchased. I now have one for each vehicle. No need for jumper cables any longer. I purchased my first one roughly 3 years ago. Maybe 4 years ago. All three work flawlessly and hold a charge for an amazing length of time. I have jumped an SUV, full size truck and a tractor with this particular model. Also, the USB ports are a nice addition for charging phones when camping or at the beach. ... show more
Reviewed in the United States on October 27, 2025 by Amazonian
    • Noco is expensive, but it works and they back their products
I’ve used this a few times on a battery that would only make the starter click so the battery still did have some power. I hooked this up and pressed the start button let it run through its first 30 second cycle then powered it one more time to start the vehicle and fired right up like it was a brand new battery very impressed. I have watched videos of people showing a battery with 5 V and using one of these, but I can’t verify if that’s actual or they’ve edited the videos. ... show more
Reviewed in the United States on August 24, 2025 by PGR
    • Make sure your unit charges fully when first delivered
The first NOCO booster shipped failed to fully charged. NOCO shipped out a replacement fast. The replacement charges properly and I am satisfied.
Reviewed in the United States on October 20, 2025 by Nigel Quinn

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