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NOCO - Boost X GBX55: 1750A UltraSafe Jump Starter – 12V Portable Lithium Battery Booster Pack – 7.5L Gas & 5.0L Diesel

Model: GBX55
SKU: 10364999
$174.95
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About This Item

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.
  • General
    • Brand: NOCO
    • Model Number: GBX55
    • Product Name: NOCO Boost X GBX55: 1750A UltraSafe Jump Starter – 12V Portable Lithium Battery Booster Pack – 7.5L Gas & 5.0L Diesel
  • Power
    • Amperage: 1750 Amps (Strength of electrical current.)
    • Voltage: 6/12 Volt (Amount of power needed to support an electrical current.)
    • Compatible Battery Type: Lead acid, Lithium-ion
    • Charger Type: DC
    • Auto Shut-Off: true (Feature automatically turns off the product.)
  • Dimensions
    • Product Height: 9.13 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 3.94 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Depth: 6.34 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
    • Product Weight: 3.4 pounds (The out of box weight of the item.)
    • Cord Length: 1 feet
  • Features
    • Overload Protection: true (Features intended to protect the product from damage and overheating caused by overload.)
    • Product Safety Certifications and Standard(s): RoHS, UL Listed (Lists the applicable certifications and/or standards, as stated by the manufacturer, in which the product has met the requirements for the assurance of quality and safety.)
  • Warranty
    • Warranty - Parts: 1 year limited
    • Warranty - Labor: 1 year limited
  • Other
    • UPC: 046221200072

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.

  • 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.
  • 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.
Whats Included
  • GBX55 jump starter with clamps, USB-C cable, and storage bag. 1-year warranty. Engineered in the USA.
  • GBX55 jump starter with clamps, USB-C cable, and storage bag. 1-year warranty. Engineered in the USA.
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NOCO - Boost X GBX55: 1750A UltraSafe Jump Starter – 12V Portable Lithium Battery Booster Pack – 7.5L Gas & 5.0L Diesel
NOCO - Boost X GBX55: 1750A UltraSafe Jump Starter – 12V Portable Lithium Battery Booster Pack – 7.5L Gas & 5.0L Diesel

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.

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The NOCO Boost GB50 is a compact yet powerful 1500-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 30 jump starts on a single charge and is rated for gasoline engines up to 7.0 liters and diesel engines up to 4.5 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 200-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 GB50 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 GB50 delivers unmatched performance, trusted durability, and peace of mind—on the road, off the grid, or wherever your next adventure takes you.

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