Search  for anything...

NOCO Boost X GBX155 4250A 12V UltraSafe Portable Lithium Jump Starter, Car Battery Booster Pack, USB-C Powerbank Charger, and Jumper Cables for up to 10.0-Liter Gas and 8.0-Liter Diesel Engines

  • Based on 4,758 reviews
Condition: New
Checking for product changes
$369.95 Why this price?

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term with PayTomorrow
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

Eligible for Return, Refund or Replacement within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, May 8
Order within 20 hours and 59 minutes
Available payment plans shown during checkout

Features

  • X for Extreme - An all-new design with extreme jump starting power for powerful engines starts. Rated at 4250-amps, this portable lithium car battery jump starter releases maximum energy at every start. This isn't an upgrade. It's a whole new series - the Extreme Series.
  • Turbo Chargeable - Boost X is equipped with USB-C technology that, combined with power delivery, gives you lightning-fast recharges. Completely recharges in just 2.7-hours, or go from 0% to jump starting in just 5-minutes of charge.
  • Charge Everything - With USB-C Power Delivery, you have the power to charge almost everything. Its internal power bank provides 60-watts of power - both in and out - to effortlessly power your favorite USB-C devices, like phones, tablets, laptops, wearables, and more.
  • UltraSafe 2.0 - We took our UltraSafe technology and made it better. It's still our simple, mistake-free design featuring spark-proof technology and reverse polarity protection, but with enhanced thermal efficiency and power management to provide better performance and longer battery life.
  • Maximum Versatility - Boost X is one of the most versatile lithium jump starters ever. Jump start all vehicle types, including cars, motorcycles, trucks, ATVs, boats, RVs, vans, SUVs, tractors, and more for up to 10.0-liter gasoline and 8.0-liter diesel engines.
  • Here's What You Get With Boost X - GBX155 UltraSafe Portable Lithium Car Battery Booster Jump Starter Pack and Power Bank with 60W USB-C Power Delivery, Heavy-Duty Jumper Cable Clamps, USB-C Charging Cable, 12V USB-C Fast Charger, Microfiber Storage Bag, 1-Year Warranty, and Designed in the USA.

Description

NOCO Boost X GBX155 is a portable lithium jump starter for 12-volt batteries in vehicles up to 10.0-liters gasoline and 8.0-liter diesel engines, including cars, motorcycles, trucks, ATVs, boats, RVs, vans, SUVs, tractors, and more. This all-new design for extreme jump starting power and rated at 4,250-amps releases maximum energy at every start. It comes equipped with 60W USB-C Power Delivery technology for ultra-fast recharging - go from 0% to jump starting in 5 minutes of charge - and powering your favorite USB-C devices like phones, tablets, laptops, wearables, and more. It includes our advanced safety technology - UltraSafe 2.0 - with spark-proof and reverse polarity protection but enhanced thermal efficiency and power management to provide better performance and longer battery life. Here's what you get with the all-new Boost X: GBX155 UltraSafe Portable Lithium Car Battery Booster Jump Starter Pack, Power Bank with 60W USB-C Power Delivery, Heavy-Duty Jumper Cable Clamps, USB-C Charging Cable, 12V USB-C Fast Charger, Microfiber Storage Bag, 1-Year Warranty, and Designed in the USA. En español (ES): NOCO Boost X GBX155 es un arrancador de batería de litio portátil para baterías de 12 voltios en vehículos con motores de gasolina de hasta 10,0 litros y diésel de 8,0 litros, incluidos automóviles, motocicletas, camiones, vehículos todo terreno, embarcaciones, vehículos recreativos, furgonetas, vehículos utilitarios deportivos, tractores y más. Este diseño completamente nuevo para una potencia de arranque extrema y con una clasificación de 4250 amperios libera la máxima energía en cada arranque. Viene equipado con tecnología USB-C Power Delivery de 60 W para una recarga ultrarrápida (pasa de 0 % a arranque rápido en 5 minutos de carga) y alimenta tus dispositivos USB-C favoritos como teléfonos, tabletas, computadoras portátiles, dispositivos portátiles y más . Incluye nuestra tecnología de seguridad avanzada, UltraSafe 2.0, con protección a prueba de chispas y de polaridad inversa, pero con eficiencia térmica mejorada y administración de energía para brindar un mejor rendimiento y una mayor duración de la batería. Esto es lo que obtienes con el nuevo Boost X: paquete de arranque auxiliar de batería de litio portátil ultraseguro para automóvil GBX155, banco de energía con suministro de energía USB-C de 60 W, abrazaderas de cable de puente de servicio pesado, cable de carga USB-C, USB-C de 12 V Cargador rápido, bolsa de almacenamiento de microfibra, garantía de 1 año y diseñado en los EE. UU.

Brand: NOCO


Product Dimensions: 8.18"D x 4.84"W x 13.51"H


Item Weight: 7.01 Pounds


Amperage: 4250 Amps


Peak Output Current: 4250 Amps


Brand: ‎NOCO


Product Dimensions: ‎8.18"D x 4.84"W x 13.51"H


Item Weight: ‎7.01 Pounds


Amperage: ‎4250 Amps


Peak Output Current: ‎4250 Amps


Specification Met: ‎energy


Manufacturer: ‎NOCO


Model: ‎GBX155


Item Weight: ‎7.01 pounds


Country of Origin: ‎China


Item model number: ‎GBX155


Batteries: ‎1 Lithium Ion batteries required.


Exterior: ‎Machined


Manufacturer Part Number: ‎GBX155


Position: ‎Unknown


Bulb Type: ‎LED


Special Features: ‎Portable Power Bank for USB Devices, Reverse Polarity and Spark-Proof Protection, 4250A 12V Portable Lithium Car Battery Jump Starter Power Pack, 500 Lumen LED Flashlight with Multiple Modes, including SOS., 60-Watt USB-C Power Delivery Technology


Date First Available: February 19, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 8

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
  • Klarna Pay in 4
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Quality jump box
Works well for medium and heavy-duty applications. I had one Cummins ISL with complete trash batteries that I couldn't get to jump, but I think if I had hooked it direct to starter/ ground, it would have done it. Most trucks it starts them with little to no effort, and has enough charge for several jumps. ... show more
Reviewed in the United States on April 4, 2024 by Jeff D.

  • Looks great definitely at five star but…
This product looks and feels it’s made To be really tough. I had a smaller version of this for years but now I’m dealing with transporting cars in the snow which are completely dead at times. Will update in a few months about the performance of this particular unit. I am a little disappointed with one key factor as advance as this looks I was very surprised not to have a C port to C port charger. This unit was way too expensive not to have that included with the product. Also the two A USB out ports are only 2.1A. That is nuts, as advanced this unit is Those A ports should be higher amps in the year 2024. My $50 portable phone charger has higher amp in its A USB out port. ... show more
Reviewed in the United States on April 13, 2024 by DKP DKP

  • Amazing power tested 300 times a year!
I own a towing/roadside assistance business and every truck carries a GBX155. It has amazing power, light weight, and very small compared to the old lead jumper packs. Never had a problem with the GBX155 or a vehicle that it will not jump start and we do 300 plus jump starts a year. I recently tested the one on a 1995 Ford L9000 Aeromax dump truck with a CAT 3176 engine which powers many semi/dump trucks. It has 3 batteries in series for starting. The truck sat for 2 years so the batteries were completely dead...hooked up the GBX155 and the truck started. I was amazed it actually worked, but I needed to keep restarting the truck until the alternator finally took over so the engine would run on its own which triggered the noco overheat protection light, but the engine was running...job complete. The overheat light went off about 10 minutes later and still works perfect. ... show more
Reviewed in the United States on November 24, 2023 by Tony P.

  • DO NOT BUY! ... UPDATE: Customer Service did the right thing.
I bought the NOCO Boost X GBX155 4250A for the "what if" situation. I pulled it out yesterday to use it for the first time and it is dead, will not take a charge at all. I did a google search and come to find out this is a common issue with the GBX series. I'm assuming I let it sit in a box for too long and it lost all of it's charge? I'm not sure. I emailed NOCO support and will follow up with what they say. 10.15.23 - Following up. NOCO will not respond to me after I showed this was purchased in July 2022. This stayed in the box as a gift and the first time I try to use it it won't turn on and will not take a charge. I'm blown away you can pay over $350 for something and it never work once. DO NOT BUY! 12.1.2023 UPDATE: Customer Service sent me a new Jump Starter. It took some time but they did the right thing. I'm bumping to 4 stars because of that, but it's being noted that you need to check on the battery and never let it run all the way down. I wasn't looking forward to baby sitting TBH, but it is what it is. ... show more
Reviewed in the United States on October 7, 2023 by Chas G.

  • Must BUY!!!
This thing is a life saver! It’s jumped my bf’s truck on zero degree mornings multiple times and still had life in it. Good garage tool and good prepper tool. The add on case makes it easy to pack around and store. If you get one of these you need the case as well!
Reviewed in the United States on April 2, 2024 by KelliLynn KelliLynn

  • Powerful little thing.
All I can say I used it on my semi truck frightliner cascadia and it was very cold outside it got my truck running. So far no issues thank God, I always keep it fully charged and never leave hooked to a charger for long periods of time. As a trucker I think all of us must have one on board. The price is a bit high but the quality is high too. ... show more
Reviewed in the United States on March 3, 2024 by Khalid

  • Woah this thing is awesome!
Had a completely dead and internally shorted battery on an abandoned car and this thing lit it right up. Tried it on several dead battery vehicles and it is really a great jump pack. Tried it out on an old Toyota and it cranks it over faster and stronger than I had ever heard it crank. Will be trying out on Heavy diesel engines and report back. Yes its on the expensive side, and also does not include a charger. I'm using an Anker 30W charger, (manual mentions a NOCO 60W charger) with the 30W I just leave it overnight and its ready to go . I also sprung for the NOCO hard case, but bought that straight from the manufacturer as it was cheaper there. ... show more
Reviewed in the United States on October 26, 2023 by bonnie 96

  • Started my semi trucks
Started a completely dead semi (Kenworth T680), easily. This thing is brand new to me so later I recharged it. Now I think I probably didn't need to already. A few days later I started another T680 that was also completely dead. This time I didn't recharge it and about a week later it started a completely dead reefer unit. This one was so dead I had to use the override feature. Again, it started fairly easily but I immediately disconnected it and it died. Think I should have left it running for a few seconds more before disconnecting it. After that happened it caused a whole "thing" because it takes so long for the reefer to go through it's start up cycle and you just have 60 seconds to start to use the NOCO so this caused a few times where the NOCO was powered up but then wasn't able to be used and had to start the whole procedure over again. Once I got the timing down though, again, it started the reefer unit fairly easily, let it run for several seconds before disconnecting the NOCO....good to go. I love this little unit. It's a beast! Had another one that's SUPPOSED to start semi's with 6000 amps (small little unit)....total dud. ... show more
Reviewed in the United States on March 4, 2024 by Tyler

Can't find a product?

Find it on Amazon first, then paste the link below.