SKU: 35534564603

NOCO gbx155 Boost X 12V 4250A Jump Starter

Sale price$166.50 Regular price$185.00
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Ships within 48 hours · Estimated delivery Aug 27 - Sep 1

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Description

NOCO gbx155 Boost X 12V 4250A Jump StarterUnleashing the Power of NOCO Boost Max GBX155 The NOCO Boost Max GBX155 is the pinnacle of the NOCO X Series, representing a complete reimagining of what a portable lithium jump starter can achieve. Designed for high displacement gasoline and diesel engines, this unit delivers a staggering 4250 amps of starting power. This is sufficient to jump start engines up to 10. 0L Gas and 8. 0L Diesel, covering everything from passenger cars to semi trucks and

Unleashing the Power of NOCO Boost Max GBX155

The NOCO Boost Max GBX155 is the pinnacle of the NOCO X Series, representing a complete reimagining of what a portable lithium jump starter can achieve. Designed for high-displacement gasoline and diesel engines, this unit delivers a staggering 4250 amps of starting power. This is sufficient to jump-start engines up to 10.0L Gas and 8.0L Diesel, covering everything from passenger cars to semi-trucks and motorhomes. The GBX series introduces the new "Extreme" design, which focuses on rapid power delivery and ultra-fast charging. By utilizing the latest lithium-polymer battery chemistry, NOCO has managed to create a device that is significantly more powerful than its predecessors while maintaining a portable form factor that can be handled by a single individual.

Thermal Efficiency and Ultra-Fast Charging

One of the most impressive technical advancements in the GBX155 is its 60W USB-C Power Delivery system. This allows the unit to be fully recharged in just a few hours, or to provide enough power for a jump start after only five minutes of charging. The internal battery architecture is optimized for high-speed thermal dissipation, allowing for multiple jump-starts in quick succession without the unit entering a thermal lockout. This efficiency is vital for roadside assistance professionals who may have to assist multiple stranded motorists in a single shift. The unit also serves as a high-speed charger for USB devices, making it an excellent companion for off-grid travel.

Safety First with UltraSafe 2.0 Technology

Safety is the most critical aspect of any high-power electrical device, and NOCO’s UltraSafe 2.0 technology provides the ultimate peace of mind. This system includes spark-proof technology and reverse polarity protection, but it goes further by improving the thermal efficiency and battery management to provide better performance and longer battery life. The jumper cables are integrated directly into the housing to minimize resistance and heat, and the clamps are designed to be slim yet incredibly durable, fitting into tight battery compartments that other jump packs cannot reach. This ensures a safe, spark-free connection every time, regardless of the user's technical skill level.

A Versatile Tool for Modern Roadside Recovery

The NOCO GBX155 is more than just a battery booster; it is a full-featured emergency tool. It features an incredibly bright 500-lumen LED flashlight with seven different modes, including SOS and emergency strobe. This is an essential safety feature for changing tires or inspecting an engine at night. The ruggedized casing is rated IP65 for water and dust resistance, meaning it can be used in rain, snow, and mud without fear of damaging the internal electronics. This durability makes it a favorite among off-road enthusiasts and heavy equipment operators who work in the most challenging environments on earth.

Unmatched Capability and Safety Features

  • Delivers 4250 amps of peak starting power for engines up to 10L Gas / 8L Diesel.
  • 60W USB-C Power Delivery for ultra-fast recharging and laptop power.
  • UltraSafe 2.0 technology provides spark-proof and reverse polarity protection.
  • High-intensity 500-lumen LED flashlight with multiple emergency modes.
  • Rugged, water-resistant IP65 rated housing for use in all weather conditions.

Advanced Battery Management Systems

The GBX155 utilizes a sophisticated internal battery management system (BMS) that monitors the state of health of each individual lithium cell. This ensures the cells are balanced during charging and discharging, which significantly extends the overall lifespan of the device. The BMS also protects against over-charging and deep-discharging, two of the most common causes of lithium battery failure. By maintaining the battery in its optimal state, NOCO ensures that the GBX155 will be ready to perform even after months of storage. This reliability is why the Boost Max series is considered the gold standard for portable jump-starting technology.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 35534564603

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Shawn SnoMan Thompson
Cuba, US
★★★★★ 5
For work or casual wear, this polo is a great choice.
Material Type: Recycled Polyester, Color: Port Stripe, Size: X-Large
I really like this polo. I've been wearing it once a week or every other week since November. Its very comfortable and breathable. This polo feels like it should last a while. The fit is good. I typcally wear XL and this XL fits great. I've pruchased it in both burgundy and black so far. I definitely recommend this shirt. For work or casual wear, this will look good.
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Reviewed in the United States on January 11, 2026
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Tech Dad
Boise, US
★★★★★ 5
Great value: These are my go-to work from home shirt
Material Type: Recycled Polyester, Color: Blue, Size: X-Large
I’ve been pleasantly surprised by these shirts and wear them weekly for Zoom calls, since I’m still working from home these days. I figured at the price point it was worth trying them out, and now I’ve bought several in different colors. They aren’t super soft, but they are comfy and look nice. I’m 6’1” ~220 pounds, and the XL slim fit still has plenty of room. I imagine the regular cut is incredibly boxy and oversized. The difference between polyester vs recycled polyester is inconsequential. I typically buy expensive golf shirts, and these definitely aren’t as nice. They are a fraction of the cost though and a great “beater” work shirt / hang out shirt. It’s nice wearing something that looks and feels decent, but if something happens to it, you can toss and it and pick up another for the cost of a chipotle burrito.
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Reviewed in the United States on May 29, 2022
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Espresso
Waukegan, US
★★★★★ 3
Great price, not great quality
Material Type: Recycled Polyester, Color: Black, Size: Small
Simple, straight forward all black polo. I am a size medium woman (with some room since I don't like form-fitting) and bought a men's small. Fits perfectly for my frame. Long enough to tuck in for my part-time extra weekend job uniform. Also suitable for the golf course. A little thin, and if you hold it up to light you can sort of see through it. *Not* flowy, soft and smooth fabric like a rash guard/sun shirt - more structured than that. But it's cool and does the job for the price under $10.
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Reviewed in the United States on August 13, 2024
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Ken Strech
Alexandria, US
★★★★★ 5
Recommend
Material Type: Recycled Polyester, Color: Dark Navy, Size: X-Large
Great fit, right price
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Reviewed in the United States on March 18, 2026
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Gwen
Lexington, US
★★★★★ 5
Nice polo
Material Type: Recycled Polyester, Color: Dark Teal, Size: Medium
Fantastic polo shirt. Size was true to fit. Color is amazing. It’s soft and it has held up through washes since Christmas.
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