About this item
- X FOR EXTREME — A new class of lithium jump starters. Rated at 4,250 amps for powerful starts on gas engines up to 10.0L and diesel engines up to 8.0L – 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 2.7 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 18 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 500-lumen LED with 7 light modes, including SOS and strobe. Illuminate repairs, emergencies, or low-light environments.
- WHAT’S IN THE BOX — GBX155 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 GBX155 Boost X is a new class of portable lithium jump starters—engineered for extreme performance and rated at 4,250 amps to start gas engines up to 10.0 liters and diesel engines up to 8.0 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 GBX155 includes an integrated 60-second timer to conserve energy—delivering up to 18 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 2.7 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 500-lumen LED flashlight features seven modes, including SOS and strobe, to light up dark workspaces or help in roadside emergencies. The GBX155 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 GBX155 delivers unmatched performance, trusted durability, and peace of mind—on the road, off the grid, or wherever your next adventure takes you.
Product Gallery
Product Specifications
| Battery Type | Lithium |
| Voltage | 12 Volts |
| Compatible with Vehicle Type | ATV, Motorcycle, Passenger Car, RV, Tractor, Truck, UTV, Van, Watercraft |
| Battery Capacity | 6750 Milliamp Hours |
| Amperage | 4250 Amps |
| Peak Output Current | 4250 Amps |
| Item Dimensions D x W x H | 8.18″D x 4.84″W x 13.51″H |
| Item Weight | 7.01 Pounds |
| Specification Met | energy |
| Brand Name | NOCO |
| Manufacturer Part Number | GBX155 |
| Manufacturer | NOCO |
| UPC | 046221200096 |
| Global Trade Identification Number | 00046221200096 |
| Item Type Name | Jump Starter |
| Included Components | 1-Year Warranty, 12V USB-C Fast Charger, GBX155 UltraSafe Portable Lithium Car Battery Booster Jump Starter Pack, Heavy-Duty Jumper Cable Clamps, Microfiber Storage Bag, Power Bank with 60W USB-C Power Delivery, USB-C Charging Cable |
| Country of Publication | China |
| Unit Count | 1.0 Count |
| Manufacturer Warranty Description | 1 Year Limited |
| Best Sellers Rank | #937 in Automotive (See Top 100 in Automotive) #22 in Jump Starters |
| ASIN | B08WZFPXFM |
| Customer Reviews | 4.2 4.2 out of 5 stars
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| UNSPSC Code | 26111704 (Battery chargers) Report an incorrect code |
| Feature | X FOR EXTREME — A new class of lithium jump starters. Rated at 4,250 amps for powerful starts on gas engines up to 10.0L and diesel engines up to 8.0L – built for extreme performance. |
| Feature | 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. |
| Feature | TURBO CHARGEABLE — Recharges in just 2.7 hours via USB-C Power Delivery, or gain enough power for a jump start in just 5 minutes – even from a completely depleted battery. |
| Feature | 60-SECOND TIMER — Integrated 60-second timer conserves power from its high-voltage design – delivering up to 18 jump starts per charge with extreme energy at every start. |
| Feature | 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. |
| Feature | INTEGRATED LED FLASHLIGHT — Precision-engineered 500-lumen LED with 7 light modes, including SOS and strobe. Illuminate repairs, emergencies, or low-light environments. |
| Feature | WHAT’S IN THE BOX — GBX155 jump starter, heavy-duty clamps, USB-C charging cable, and microfiber storage bag. Backed by a 1-year warranty and engineered in the USA. |
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